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	<id>https://wiki.universitas.ro/index.php?action=history&amp;feed=atom&amp;title=E%3A14892</id>
	<title>E:14892 - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://wiki.universitas.ro/index.php?action=history&amp;feed=atom&amp;title=E%3A14892"/>
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	<updated>2026-06-16T23:00:22Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8271&amp;oldid=prev</id>
		<title>Andrei.Horvat at 20:29, 20 December 2023</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8271&amp;oldid=prev"/>
		<updated>2023-12-20T20:29:14Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 20:29, 20 December 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l23&quot;&gt;Line 23:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 23:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;b) Avem &amp;lt;math&amp;gt;m\left(\sphericalangle ARM\right) = \frac{1}{2}\cdot m\left(\stackrel{\frown}{BM}\right) = m\left(\sphericalangle BCM\right) = 30^\circ.&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;b) Avem &amp;lt;math&amp;gt;m\left(\sphericalangle ARM\right) = \frac{1}{2}\cdot m\left(\stackrel{\frown}{BM}\right) = m\left(\sphericalangle BCM\right) = 30^\circ.&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;c) Din &amp;lt;math&amp;gt;m\left( \sphericalangle DMC \right) = m\left( \sphericalangle MAC \right) + m\left( \sphericalangle AMC \right)&amp;lt;/math&amp;gt;, și &amp;lt;math&amp;gt;m \left( \stackrel{\frown}{MT} \right) = \frac{1}{2} \cdot m\left( \sphericalangle MCT \right) = \frac{1}{2} \cdot m\left( \sphericalangle MRT \right)&amp;lt;/math&amp;gt; se deduce că are loc egalitatea &amp;lt;math display=&quot;block&quot;&amp;gt; m\left(\sphericalangle MRT\right) + m\left(\sphericalangle MAT\right) = m\left(\sphericalangle DMC\right)&amp;lt;/math&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8269&amp;oldid=prev</id>
		<title>Andrei.Horvat at 20:18, 20 December 2023</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8269&amp;oldid=prev"/>
		<updated>2023-12-20T20:18:53Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 20:18, 20 December 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l14&quot;&gt;Line 14:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 14:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Cum &amp;lt;math&amp;gt;m\left(\sphericalangle BMA\right) = 120^\circ&amp;lt;/math&amp;gt;, avem &amp;lt;math&amp;gt;m\left(\sphericalangle BMP\right) = 60^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;\left[MP\right] \equiv \left[MB\right]&amp;lt;/math&amp;gt;, deci triunghiul &amp;lt;math&amp;gt;BMP&amp;lt;/math&amp;gt; este echilateral.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Cum &amp;lt;math&amp;gt;m\left(\sphericalangle BMA\right) = 120^\circ&amp;lt;/math&amp;gt;, avem &amp;lt;math&amp;gt;m\left(\sphericalangle BMP\right) = 60^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;\left[MP\right] \equiv \left[MB\right]&amp;lt;/math&amp;gt;, deci triunghiul &amp;lt;math&amp;gt;BMP&amp;lt;/math&amp;gt; este echilateral.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;În triunghiul &amp;lt;math&amp;gt;BPR&amp;lt;/math&amp;gt; avem &amp;lt;math&amp;gt;m\left(\sphericalangle RBP\right) = a + 60^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle BPR\right) = 60^\circ - 2a&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;m\left(\sphericalangle BRP\right) = 180^\circ - \left(60^\circ + a\right) - \left(60^\circ -2a\right) = 60^\circ + a = m\left(\sphericalangle RBP\right)&amp;lt;/math&amp;gt;. Cum &amp;lt;math&amp;gt;\sphericalangle RBP \equiv \sphericalangle PBR&amp;lt;/math&amp;gt;, rezultă că triunghiul &amp;lt;math&amp;gt;PBR&amp;lt;/math&amp;gt; este isoscel, cu &amp;lt;math&amp;gt;\left[ BP \right] \equiv \left[RP\right]&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;În triunghiul &amp;lt;math&amp;gt;BPR&amp;lt;/math&amp;gt; avem &amp;lt;math&amp;gt;m\left(\sphericalangle RBP\right) = a + 60^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle BPR\right) = 60^\circ - 2a&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;m\left(\sphericalangle BRP\right) = 180^\circ - \left(60^\circ + a\right) - \left(60^\circ -2a\right) = 60^\circ + a = m\left(\sphericalangle RBP\right)&amp;lt;/math&amp;gt;. Cum &amp;lt;math&amp;gt;\sphericalangle RBP \equiv \sphericalangle PBR&amp;lt;/math&amp;gt;, rezultă că triunghiul &amp;lt;math&amp;gt;PBR&amp;lt;/math&amp;gt; este isoscel, cu &amp;lt;math &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;display=&quot;block&quot; id=&quot;eq1&quot;&lt;/ins&gt;&amp;gt;\left[ BP \right] \equiv \left[RP\right]&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;.&lt;/ins&gt;&amp;lt;/math&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Fie &amp;lt;math&amp;gt;E&amp;lt;/math&amp;gt; simetricul punctului &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt; față de punctul &amp;lt;math&amp;gt;P&amp;lt;/math&amp;gt;. Atunci triunghiul &amp;lt;math&amp;gt;MBE&amp;lt;/math&amp;gt; este dreptunghic, cu &amp;lt;math&amp;gt;m\left(\sphericalangle MBE\right) = 90^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle BMP\right) = 60^\circ&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;m\left(\sphericalangle BEM\right) = 30^\circ = m\left(\sphericalangle BCM\right)&amp;lt;/math&amp;gt;, deci patrulaterul &amp;lt;math&amp;gt;BMCE&amp;lt;/math&amp;gt; este inscriptibil&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Fie &lt;/del&gt;&amp;lt;math&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;E&amp;lt;/math&amp;gt; simetricul punctului &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt; față de punctul &amp;lt;math&amp;gt;P&lt;/del&gt;&amp;lt;/math&amp;gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Atunci triunghiul &amp;lt;math&amp;gt;MBE&amp;lt;/math&amp;gt; este dreptunghic, cu &lt;/del&gt;&amp;lt;math&amp;gt;m\left(\sphericalangle &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;MBE&lt;/del&gt;\right) = &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;90^&lt;/del&gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;&lt;/del&gt;m\left(\sphericalangle &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;BMP&lt;/del&gt;\right) = 60^\circ&amp;lt;/math&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, deci &lt;/del&gt;&amp;lt;math&amp;gt;m\left(\sphericalangle &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;BEM&lt;/del&gt;\right) = &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;30^&lt;/del&gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;circ = &lt;/del&gt;m\left(\sphericalangle &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;BCM&lt;/del&gt;\right)&amp;lt;/math&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, deci patrulaterul &amp;lt;math&amp;gt;BMCE&amp;lt;/math&amp;gt; este inscriptibil&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Notăm &lt;/ins&gt;&amp;lt;math&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;x= m\left(\sphericalangle CBP\right) = m\left(\sphericalangle BCP\right)&lt;/ins&gt;&amp;lt;/math&amp;gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Avem &lt;/ins&gt;&amp;lt;math&amp;gt;m\left(\sphericalangle &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;MPC\right) = m \left(\stackrel{\frown}{MC}&lt;/ins&gt;\right) = &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;2&lt;/ins&gt;\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;cdot &lt;/ins&gt;m\left(\sphericalangle &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;MBC&lt;/ins&gt;\right) = &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;2\left(&lt;/ins&gt;60^\circ &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;- x\right)&lt;/ins&gt;&amp;lt;/math&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. Atunci &lt;/ins&gt;&amp;lt;math&amp;gt;m\left(\sphericalangle &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;TPC&lt;/ins&gt;\right) = &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;m\left(\sphericalangle MPC&lt;/ins&gt;\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;right) - &lt;/ins&gt;m\left(\sphericalangle &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;MPT\right) = 2\left(60^\circ - x&lt;/ins&gt;\right) &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;- 2b&lt;/ins&gt;&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Notăm &lt;/del&gt;&amp;lt;math&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;x= &lt;/del&gt;m\left(\sphericalangle &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;CBP&lt;/del&gt;\right) = m\left(\sphericalangle &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;BCP&lt;/del&gt;\right)&amp;lt;/math&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. Avem &lt;/del&gt;&amp;lt;math&amp;gt;m\left(\sphericalangle &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;MPC&lt;/del&gt;\right) = &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; = 2&lt;/del&gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;cdot m&lt;/del&gt;\left(\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sphericalangle MBC&lt;/del&gt;\right) &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;= 2&lt;/del&gt;\left(&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;60&lt;/del&gt;^\circ - x\right)&amp;lt;/math&amp;gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Atunci &lt;/del&gt;&amp;lt;math&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;m&lt;/del&gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;left(&lt;/del&gt;\sphericalangle &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;TPC\right) &lt;/del&gt;= &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;m&lt;/del&gt;\left&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;(\sphericalangle MPC&lt;/del&gt;\right&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;) - m&lt;/del&gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;left(\sphericalangle MPT\right) = 2&lt;/del&gt;\left&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;(60^\circ - x&lt;/del&gt;\right&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;) - 2b&lt;/del&gt;&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;În triunghiul &amp;lt;math&amp;gt;TPC&amp;lt;/math&amp;gt; avem &lt;/ins&gt;&amp;lt;math&amp;gt;m\left(\sphericalangle &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;TCP&lt;/ins&gt;\right) = &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;b + 30^\circ + x&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;&lt;/ins&gt;m\left(\sphericalangle &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;TPC&lt;/ins&gt;\right) &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;= 120^\circ - 2b - 2x&lt;/ins&gt;&amp;lt;/math&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, deci &lt;/ins&gt;&amp;lt;math&amp;gt;m\left(\sphericalangle &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;PTC&lt;/ins&gt;\right) = &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;180^&lt;/ins&gt;\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;circ - &lt;/ins&gt;\left(&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;b+30^&lt;/ins&gt;\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;circ + x&lt;/ins&gt;\right) &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;- &lt;/ins&gt;\left(&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;120&lt;/ins&gt;^\circ -&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;2b - 2x\right) = 30^\circ + b + &lt;/ins&gt;x &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;= m\left(\sphericalangle TCP&lt;/ins&gt;\right)&amp;lt;/math&amp;gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Cum &lt;/ins&gt;&amp;lt;math&amp;gt;\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sphericalangle TCP \equiv &lt;/ins&gt;\sphericalangle &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;PCT&amp;lt;/math&amp;gt;, rezultă că triunghiul &amp;lt;math&amp;gt;PCT&amp;lt;/math&amp;gt; este isoscel, cu &amp;lt;math display=&quot;block&quot; id&lt;/ins&gt;=&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&quot;eq2&quot;&amp;gt;&lt;/ins&gt;\left&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[ CP &lt;/ins&gt;\right&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;] &lt;/ins&gt;\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;equiv &lt;/ins&gt;\left&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[TP&lt;/ins&gt;\right&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;].&amp;lt;/math&amp;gt;Deci punctele &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;R&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;B&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;C&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;T&lt;/ins&gt;&amp;lt;/math&amp;gt; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sunt conciclice&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;În triunghiul &amp;lt;math&amp;gt;TPC&amp;lt;/math&amp;gt; avem &lt;/del&gt;&amp;lt;math&amp;gt;m\left(\sphericalangle &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;TCP&lt;/del&gt;\right) = &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;b + 30^\circ + x&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;&lt;/del&gt;m\left(\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sphericalangle TPC&lt;/del&gt;\right) = &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;120^\circ - 2b - 2x&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;&lt;/del&gt;m\left(\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sphericalangle PTC&lt;/del&gt;\right) &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;= 180^\circ - &lt;/del&gt;\left(&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;b+30^&lt;/del&gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;circ + x&lt;/del&gt;\right) &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;- &lt;/del&gt;\left(&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;120^&lt;/del&gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;circ -2b - 2x&lt;/del&gt;\right) &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;= 30^&lt;/del&gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;circ + b + x = &lt;/del&gt;m\left(\sphericalangle &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;TCP&lt;/del&gt;\right)&amp;lt;/math&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. Cum &lt;/del&gt;&amp;lt;math&amp;gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sphericalangle TCP &lt;/del&gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;equiv &lt;/del&gt;\sphericalangle &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;PCT&amp;lt;/math&amp;gt;, rezultă că triunghiul &amp;lt;math&amp;gt;PCT&amp;lt;/math&amp;gt; este isoscel, cu &amp;lt;math&amp;gt;&lt;/del&gt;\left&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[ CP &lt;/del&gt;\right&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;] &lt;/del&gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;equiv &lt;/del&gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;left[TP&lt;/del&gt;\right&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]&lt;/del&gt;&amp;lt;/math&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a) Avem &lt;/ins&gt;&amp;lt;math&amp;gt;m\left(\sphericalangle &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;RPT&lt;/ins&gt;\right) = m \left(\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;stackrel{\frown}{RT}&lt;/ins&gt;\right) = m\left(\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;stackrel{\frown}{RM}&lt;/ins&gt;\right) &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;+ m&lt;/ins&gt;\left(\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;stackrel{\frown}{MT}&lt;/ins&gt;\right) &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;= 2\cdot m&lt;/ins&gt;\left(\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sphericalangle MTR&lt;/ins&gt;\right) &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;+ 2&lt;/ins&gt;\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;cdot &lt;/ins&gt;m\left(\sphericalangle &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;MRT&lt;/ins&gt;\right)&amp;lt;/math&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, deci &lt;/ins&gt;&amp;lt;math&amp;gt;\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;frac{1}{2} \cdot m&lt;/ins&gt;\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;left(&lt;/ins&gt;\sphericalangle &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;RPT\right) = m&lt;/ins&gt;\left&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;(\sphericalangle MRT&lt;/ins&gt;\right&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;) + m&lt;/ins&gt;\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;left(&lt;/ins&gt;\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sphericalangle MTR&lt;/ins&gt;\right&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;).&lt;/ins&gt;&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Deci punctele &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;R&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;B&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;C&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;T&amp;lt;/math&amp;gt; sunt conciclice.&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;b&lt;/ins&gt;) Avem &amp;lt;math&amp;gt;m\left(\sphericalangle &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ARM&lt;/ins&gt;\right) = \frac{1}{2}\cdot m\left(\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;stackrel{&lt;/ins&gt;\&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;frown&lt;/ins&gt;}{BM}\right) = m\left(\sphericalangle BCM\right) = 30^\circ.&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a&lt;/del&gt;) Avem &amp;lt;math&amp;gt;m\left(\sphericalangle &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;RPT\right) = m \left(\widearc{RT}\right) = m\left(\widearc{RM}\right) + m\left(\widearc{MT}&lt;/del&gt;\right) = &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;2\cdot m\left(\sphericalangle MTR\right) + 2\cdot m\left(\sphericalangle MRT\right)&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;&lt;/del&gt;\frac{1}{2} \cdot m\left(\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sphericalangle RPT\right) = m&lt;/del&gt;\&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;left(\sphericalangle MRT\right) + m\left(\sphericalangle MTR\right).&amp;lt;/math&amp;gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;b) Avem &amp;lt;math&amp;gt;m\left(\sphericalangle ARM\right) = \frac{1}{2&lt;/del&gt;}&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;\cdot m\left(\widearc&lt;/del&gt;{BM}\right) = m\left(\sphericalangle BCM\right) = 30^\circ.&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8268&amp;oldid=prev</id>
		<title>Andrei.Horvat at 20:08, 20 December 2023</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8268&amp;oldid=prev"/>
		<updated>2023-12-20T20:08:55Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 20:08, 20 December 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l18&quot;&gt;Line 18:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 18:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Fie &amp;lt;math&amp;gt;E&amp;lt;/math&amp;gt; simetricul punctului &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt; față de punctul &amp;lt;math&amp;gt;P&amp;lt;/math&amp;gt;. Atunci triunghiul &amp;lt;math&amp;gt;MBE&amp;lt;/math&amp;gt; este dreptunghic, cu &amp;lt;math&amp;gt;m\left(\sphericalangle MBE\right) = 90^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle BMP\right) = 60^\circ&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;m\left(\sphericalangle BEM\right) = 30^\circ = m\left(\sphericalangle BCM\right)&amp;lt;/math&amp;gt;, deci patrulaterul &amp;lt;math&amp;gt;BMCE&amp;lt;/math&amp;gt; este inscriptibil.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Fie &amp;lt;math&amp;gt;E&amp;lt;/math&amp;gt; simetricul punctului &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt; față de punctul &amp;lt;math&amp;gt;P&amp;lt;/math&amp;gt;. Atunci triunghiul &amp;lt;math&amp;gt;MBE&amp;lt;/math&amp;gt; este dreptunghic, cu &amp;lt;math&amp;gt;m\left(\sphericalangle MBE\right) = 90^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle BMP\right) = 60^\circ&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;m\left(\sphericalangle BEM\right) = 30^\circ = m\left(\sphericalangle BCM\right)&amp;lt;/math&amp;gt;, deci patrulaterul &amp;lt;math&amp;gt;BMCE&amp;lt;/math&amp;gt; este inscriptibil.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Notăm &amp;lt;math&amp;gt;x= m\left(\sphericalangle CBP\right) = m\left(\sphericalangle BCP\right)&amp;lt;/math&amp;gt;. Avem &amp;lt;math&amp;gt;m\left(\sphericalangle MPC\right) = &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;m \left(\widearc{MC}\right) &lt;/del&gt;= 2\cdot m\left(\sphericalangle MBC\right) = 2\left(60^\circ - x\right)&amp;lt;/math&amp;gt;. Atunci &amp;lt;math&amp;gt;m\left(\sphericalangle TPC\right) = m\left(\sphericalangle MPC\right) - m\left(\sphericalangle MPT\right) = 2\left(60^\circ - x\right) - 2b&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Notăm &amp;lt;math&amp;gt;x= m\left(\sphericalangle CBP\right) = m\left(\sphericalangle BCP\right)&amp;lt;/math&amp;gt;. Avem &amp;lt;math&amp;gt;m\left(\sphericalangle MPC\right) = &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; &lt;/ins&gt;= 2\cdot m\left(\sphericalangle MBC\right) = 2\left(60^\circ - x\right)&amp;lt;/math&amp;gt;. Atunci &amp;lt;math&amp;gt;m\left(\sphericalangle TPC\right) = m\left(\sphericalangle MPC\right) - m\left(\sphericalangle MPT\right) = 2\left(60^\circ - x\right) - 2b&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;În triunghiul &amp;lt;math&amp;gt;TPC&amp;lt;/math&amp;gt; avem &amp;lt;math&amp;gt;m\left(\sphericalangle TCP\right) = b + 30^\circ + x&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle TPC\right) = 120^\circ - 2b - 2x&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;m\left(\sphericalangle PTC\right) = 180^\circ - \left(b+30^\circ + x\right) - \left(120^\circ -2b - 2x\right) = 30^\circ + b + x = m\left(\sphericalangle TCP\right)&amp;lt;/math&amp;gt;. Cum &amp;lt;math&amp;gt;\sphericalangle TCP \equiv \sphericalangle PCT&amp;lt;/math&amp;gt;, rezultă că triunghiul &amp;lt;math&amp;gt;PCT&amp;lt;/math&amp;gt; este isoscel, cu &amp;lt;math&amp;gt;\left[ CP \right] \equiv \left[TP\right]&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;În triunghiul &amp;lt;math&amp;gt;TPC&amp;lt;/math&amp;gt; avem &amp;lt;math&amp;gt;m\left(\sphericalangle TCP\right) = b + 30^\circ + x&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle TPC\right) = 120^\circ - 2b - 2x&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;m\left(\sphericalangle PTC\right) = 180^\circ - \left(b+30^\circ + x\right) - \left(120^\circ -2b - 2x\right) = 30^\circ + b + x = m\left(\sphericalangle TCP\right)&amp;lt;/math&amp;gt;. Cum &amp;lt;math&amp;gt;\sphericalangle TCP \equiv \sphericalangle PCT&amp;lt;/math&amp;gt;, rezultă că triunghiul &amp;lt;math&amp;gt;PCT&amp;lt;/math&amp;gt; este isoscel, cu &amp;lt;math&amp;gt;\left[ CP \right] \equiv \left[TP\right]&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8267&amp;oldid=prev</id>
		<title>Andrei.Horvat at 20:07, 20 December 2023</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8267&amp;oldid=prev"/>
		<updated>2023-12-20T20:07:33Z</updated>

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&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 20:07, 20 December 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l9&quot;&gt;Line 9:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 9:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:E-14892 a.png|miniatura]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:E-14892 a.png|miniatura]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Folosim notațiile &amp;lt;math&amp;gt;m\left(\sphericalangle RBM\right) = a&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle TCM\right) = b&amp;lt;/math&amp;gt;. Atunci &amp;lt;math&amp;gt;m\left(\sphericalangle MPR\right) = 2a&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle MPT\right) = 2b&amp;lt;/math&amp;gt;.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Cum &amp;lt;math&amp;gt;m\left(\sphericalangle BMA\right) = 120^\circ&amp;lt;/math&amp;gt;, avem &amp;lt;math&amp;gt;m\left(\sphericalangle BMP\right) = 60^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;\left[MP\right] \equiv \left[MB\right]&amp;lt;/math&amp;gt;, deci triunghiul &amp;lt;math&amp;gt;BMP&amp;lt;/math&amp;gt; este echilateral. &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;În triunghiul &amp;lt;math&amp;gt;BPR&amp;lt;/math&amp;gt; avem &amp;lt;math&amp;gt;m\left(\sphericalangle RBP\right) = a + 60^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle BPR\right) = 60^\circ - 2a&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;m\left(\sphericalangle BRP\right) = 180^\circ - \left(60^\circ + a\right) - \left(60^\circ -2a\right) = 60^\circ + a = m\left(\sphericalangle RBP\right)&amp;lt;/math&amp;gt;. Cum &amp;lt;math&amp;gt;\sphericalangle RBP \equiv \sphericalangle PBR&amp;lt;/math&amp;gt;, rezultă că triunghiul &amp;lt;math&amp;gt;PBR&amp;lt;/math&amp;gt; este isoscel, cu &amp;lt;math&amp;gt;\left[ BP \right] \equiv \left[RP\right]&amp;lt;/math&amp;gt;.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Fie &amp;lt;math&amp;gt;E&amp;lt;/math&amp;gt; simetricul punctului &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt; față de punctul &amp;lt;math&amp;gt;P&amp;lt;/math&amp;gt;. Atunci triunghiul &amp;lt;math&amp;gt;MBE&amp;lt;/math&amp;gt; este dreptunghic, cu &amp;lt;math&amp;gt;m\left(\sphericalangle MBE\right) = 90^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle BMP\right) = 60^\circ&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;m\left(\sphericalangle BEM\right) = 30^\circ = m\left(\sphericalangle BCM\right)&amp;lt;/math&amp;gt;, deci patrulaterul &amp;lt;math&amp;gt;BMCE&amp;lt;/math&amp;gt; este inscriptibil.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Notăm &amp;lt;math&amp;gt;x= m\left(\sphericalangle CBP\right) = m\left(\sphericalangle BCP\right)&amp;lt;/math&amp;gt;. Avem &amp;lt;math&amp;gt;m\left(\sphericalangle MPC\right) = m \left(\widearc{MC}\right) = 2\cdot m\left(\sphericalangle MBC\right) = 2\left(60^\circ - x\right)&amp;lt;/math&amp;gt;. Atunci &amp;lt;math&amp;gt;m\left(\sphericalangle TPC\right) = m\left(\sphericalangle MPC\right) - m\left(\sphericalangle MPT\right) = 2\left(60^\circ - x\right) - 2b&amp;lt;/math&amp;gt;.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;În triunghiul &amp;lt;math&amp;gt;TPC&amp;lt;/math&amp;gt; avem &amp;lt;math&amp;gt;m\left(\sphericalangle TCP\right) = b + 30^\circ + x&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle TPC\right) = 120^\circ - 2b - 2x&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;m\left(\sphericalangle PTC\right) = 180^\circ - \left(b+30^\circ + x\right) - \left(120^\circ -2b - 2x\right) = 30^\circ + b + x = m\left(\sphericalangle TCP\right)&amp;lt;/math&amp;gt;. Cum &amp;lt;math&amp;gt;\sphericalangle TCP \equiv \sphericalangle PCT&amp;lt;/math&amp;gt;, rezultă că triunghiul &amp;lt;math&amp;gt;PCT&amp;lt;/math&amp;gt; este isoscel, cu &amp;lt;math&amp;gt;\left[ CP \right] \equiv \left[TP\right]&amp;lt;/math&amp;gt;.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Deci punctele &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;R&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;B&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;C&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;T&amp;lt;/math&amp;gt; sunt conciclice.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a) Avem &amp;lt;math&amp;gt;m\left(\sphericalangle RPT\right) = m \left(\widearc{RT}\right) = m\left(\widearc{RM}\right) + m\left(\widearc{MT}\right) = 2\cdot m\left(\sphericalangle MTR\right) + 2\cdot m\left(\sphericalangle MRT\right)&amp;lt;/math&amp;gt;, deci &amp;lt;math&amp;gt;\frac{1}{2} \cdot m\left(\sphericalangle RPT\right) = m\left(\sphericalangle MRT\right) + m\left(\sphericalangle MTR\right).&amp;lt;/math&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;b) Avem &amp;lt;math&amp;gt;m\left(\sphericalangle ARM\right) = \frac{1}{2}\cdot m\left(\widearc{BM}\right) = m\left(\sphericalangle BCM\right) = 30^\circ.&amp;lt;/math&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8266&amp;oldid=prev</id>
		<title>Andrei.Horvat at 20:00, 20 December 2023</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8266&amp;oldid=prev"/>
		<updated>2023-12-20T20:00:35Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 20:00, 20 December 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;E:14892 (Radu Pop &amp;amp; Ienuțaș Vasile)&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;E:14892 (Radu Pop &amp;amp; Ienuțaș Vasile)&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Fie triunghiul &amp;lt;math&amp;gt;ABC&amp;lt;/math&amp;gt; cu &amp;lt;math&amp;gt;m\left(\sphericalangle C\right) &amp;gt; 30^\circ&amp;lt;/math&amp;gt; și punctele &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;P&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;R&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;T&amp;lt;/math&amp;gt;. Punctul &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt; este situat în interiorul triunghiului &amp;lt;math&amp;gt;ABC&amp;lt;/math&amp;gt; astfel încât &amp;lt;math&amp;gt;m\left(\sphericalangle BMA\right) = 120^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle BCM\right) = 30^\circ&amp;lt;/math&amp;gt;, punctul &amp;lt;math&amp;gt;P\in \left(MD\right.&amp;lt;/math&amp;gt; astfel încât &amp;lt;math&amp;gt;\left[MP\right] \equiv \left[MB\right]&amp;lt;/math&amp;gt; cu &amp;lt;math&amp;gt;AM \cap BC = \left\{D\right\}&amp;lt;/math&amp;gt;, iar &amp;lt;math&amp;gt;R\in \left(AB\right)&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;T \in \left(AC\right)&amp;lt;/math&amp;gt; astfel încât &amp;lt;math&amp;gt;m\left(\sphericalangle RBM\right) = \frac{1}{2} \cdot m\left(\sphericalangle RPM\right)&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle TPM\right) = 2 \cdot m\left(\sphericalangle TCM\right)&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;Fie triunghiul&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039; &lt;/ins&gt;&amp;lt;math&amp;gt;ABC&amp;lt;/math&amp;gt; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;cu&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039; &lt;/ins&gt;&amp;lt;math&amp;gt;m\left(\sphericalangle C\right) &amp;gt; 30^\circ&amp;lt;/math&amp;gt; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;și punctele&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039; &lt;/ins&gt;&amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;P&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;R&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;T&amp;lt;/math&amp;gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;Punctul&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039; &lt;/ins&gt;&amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;este situat în interiorul triunghiului&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039; &lt;/ins&gt;&amp;lt;math&amp;gt;ABC&amp;lt;/math&amp;gt; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;astfel încât&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039; &lt;/ins&gt;&amp;lt;math&amp;gt;m\left(\sphericalangle BMA\right) = 120^\circ&amp;lt;/math&amp;gt; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;și &amp;lt;math&amp;gt;m\left(\sphericalangle BCM\right) = 30^\circ&amp;lt;/math&amp;gt;, punctul &amp;lt;math&amp;gt;P\in \left(MD\right.&amp;lt;/math&amp;gt; astfel încât &amp;lt;math&amp;gt;\left[MP\right] \equiv \left[MB\right]&amp;lt;/math&amp;gt; cu &amp;lt;math&amp;gt;AM \cap BC = \left\{D\right\}&amp;lt;/math&amp;gt;, iar &amp;lt;math&amp;gt;R\in \left(AB\right)&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;T \in \left(AC\right)&amp;lt;/math&amp;gt; astfel încât &amp;lt;math&amp;gt;m\left(\sphericalangle RBM\right) = \frac{1}{2} \cdot m\left(\sphericalangle RPM\right)&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle TPM\right) = 2 \cdot m\left(\sphericalangle TCM\right)&amp;lt;/math&amp;gt;.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;A&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;Arătați că&#039;&#039; &amp;lt;math&amp;gt;\frac{1}{2} \cdot m\left(\sphericalangle RPT\right) = m\left(\sphericalangle MRT\right) + m\left(\sphericalangle MTR\right)&amp;lt;/math&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;D&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;Determinați măsura unghiului&#039;&#039; &amp;lt;math&amp;gt;\sphericalangle ARM&amp;lt;/math&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;A&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;# &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;Arătați că&#039;&#039; &amp;lt;math&amp;gt; m\left(\sphericalangle MRT\right) + m\left(\sphericalangle MAT\right) = m\left(\sphericalangle DMC\right)&amp;lt;/math&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:E-14892 a.png|miniatura]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Fișier:E-14892 a.png|miniatura]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8265&amp;oldid=prev</id>
		<title>Andrei.Horvat at 19:57, 20 December 2023</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8265&amp;oldid=prev"/>
		<updated>2023-12-20T19:57:06Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 19:57, 20 December 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot;&gt;Line 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Fie triunghiul &amp;lt;math&amp;gt;ABC&amp;lt;/math&amp;gt; cu &amp;lt;math&amp;gt;m\left(\sphericalangle C\right) &amp;gt; 30^\circ&amp;lt;/math&amp;gt; și punctele &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;P&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;R&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;T&amp;lt;/math&amp;gt;. Punctul &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt; este situat în interiorul triunghiului &amp;lt;math&amp;gt;ABC&amp;lt;/math&amp;gt; astfel încât &amp;lt;math&amp;gt;m\left(\sphericalangle BMA\right) = 120^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle BCM\right) = 30^\circ&amp;lt;/math&amp;gt;, punctul &amp;lt;math&amp;gt;P\in \left(MD\right.&amp;lt;/math&amp;gt; astfel încât &amp;lt;math&amp;gt;\left[MP\right] \equiv \left[MB\right]&amp;lt;/math&amp;gt; cu &amp;lt;math&amp;gt;AM \cap BC = \left\{D\right\}&amp;lt;/math&amp;gt;, iar &amp;lt;math&amp;gt;R\in \left(AB\right)&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;T \in \left(AC\right)&amp;lt;/math&amp;gt; astfel încât &amp;lt;math&amp;gt;m\left(\sphericalangle RBM\right) = \frac{1}{2} \cdot m\left(\sphericalangle RPM\right)&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle TPM\right) = 2 \cdot m\left(\sphericalangle TCM\right)&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Fie triunghiul &amp;lt;math&amp;gt;ABC&amp;lt;/math&amp;gt; cu &amp;lt;math&amp;gt;m\left(\sphericalangle C\right) &amp;gt; 30^\circ&amp;lt;/math&amp;gt; și punctele &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;P&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;R&amp;lt;/math&amp;gt;, &amp;lt;math&amp;gt;T&amp;lt;/math&amp;gt;. Punctul &amp;lt;math&amp;gt;M&amp;lt;/math&amp;gt; este situat în interiorul triunghiului &amp;lt;math&amp;gt;ABC&amp;lt;/math&amp;gt; astfel încât &amp;lt;math&amp;gt;m\left(\sphericalangle BMA\right) = 120^\circ&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle BCM\right) = 30^\circ&amp;lt;/math&amp;gt;, punctul &amp;lt;math&amp;gt;P\in \left(MD\right.&amp;lt;/math&amp;gt; astfel încât &amp;lt;math&amp;gt;\left[MP\right] \equiv \left[MB\right]&amp;lt;/math&amp;gt; cu &amp;lt;math&amp;gt;AM \cap BC = \left\{D\right\}&amp;lt;/math&amp;gt;, iar &amp;lt;math&amp;gt;R\in \left(AB\right)&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;T \in \left(AC\right)&amp;lt;/math&amp;gt; astfel încât &amp;lt;math&amp;gt;m\left(\sphericalangle RBM\right) = \frac{1}{2} \cdot m\left(\sphericalangle RPM\right)&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt;m\left(\sphericalangle TPM\right) = 2 \cdot m\left(\sphericalangle TCM\right)&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;# A&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;# D&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;# A&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&#039;&#039;Soluție&#039;&#039;&#039;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Fișier:E-14892 a.png|miniatura]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8263&amp;oldid=prev</id>
		<title>Andrei.Horvat at 19:54, 20 December 2023</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8263&amp;oldid=prev"/>
		<updated>2023-12-20T19:54:05Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 19:54, 20 December 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;E:14892 (Radu Pop &amp;amp; Ienuțaș Vasile)&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;E:14892 (Radu Pop &amp;amp; Ienuțaș Vasile)&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Fie triunghiul &amp;lt;math&amp;gt;ABC&amp;lt;/math&amp;gt; cu &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;m\left(\sphericalangle C\right) &amp;gt; 30^\circ&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;și punctele &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;M&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;P&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;R&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;T&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;. Punctul &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;M&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;este situat în interiorul triunghiului &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;ABC&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;astfel încât &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;m\left(\sphericalangle BMA\right) = 120^\circ&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;și &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;m\left(\sphericalangle BCM\right) = 30^\circ&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;, punctul &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;P\in \left(MD\right.&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;astfel încât &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;\left[MP\right] \equiv \left[MB\right]&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;cu &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;AM \cap BC = \left\{D\right\}&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;, iar &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;R\in \left(AB\right)&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;și &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;T \in \left(AC\right)&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;astfel încât &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;m\left(\sphericalangle RBM\right) = \frac{1}{2} \cdot m\left(\sphericalangle RPM\right)&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;și &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;m\left(\sphericalangle TPM\right) = 2 \cdot m\left(\sphericalangle TCM\right)&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Fie triunghiul &amp;lt;math&amp;gt;ABC&amp;lt;/math&amp;gt; cu &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;m\left(\sphericalangle C\right) &amp;gt; 30^\circ&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;și punctele &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;M&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt;&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;P&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt;&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;R&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt;&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;T&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt;&lt;/ins&gt;. Punctul &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;M&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;este situat în interiorul triunghiului &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;ABC&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;astfel încât &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;m\left(\sphericalangle BMA\right) = 120^\circ&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;și &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;m\left(\sphericalangle BCM\right) = 30^\circ&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt;&lt;/ins&gt;, punctul &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;P\in \left(MD\right.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;astfel încât &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;\left[MP\right] \equiv \left[MB\right]&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;cu &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;AM \cap BC = \left\{D\right\}&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt;&lt;/ins&gt;, iar &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;R\in \left(AB\right)&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;și &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;T \in \left(AC\right)&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;astfel încât &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;m\left(\sphericalangle RBM\right) = \frac{1}{2} \cdot m\left(\sphericalangle RPM\right)&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;și &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;m\left(\sphericalangle TPM\right) = 2 \cdot m\left(\sphericalangle TCM\right)&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt;&lt;/ins&gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8262&amp;oldid=prev</id>
		<title>Andrei.Horvat at 19:50, 20 December 2023</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8262&amp;oldid=prev"/>
		<updated>2023-12-20T19:50:56Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 19:50, 20 December 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;E:14892 (Radu Pop &amp;amp; Ienuțaș Vasile)&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;E:14892 (Radu Pop &amp;amp; Ienuțaș Vasile)&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Fie triunghiul &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$&lt;/del&gt;ABC&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;$ &lt;/del&gt;cu $m\left(\sphericalangle C\right) &amp;gt; 30^\circ$ și punctele $M$, $P$, $R$, $T$. Punctul $M$ este situat în interiorul triunghiului $ABC$ astfel încât $m\left(\sphericalangle BMA\right) = 120^\circ$ și $m\left(\sphericalangle BCM\right) = 30^\circ$, punctul $P\in \left(MD\right.$ astfel încât $\left[MP\right] \equiv \left[MB\right]$ cu $AM \cap BC = \left\{D\right\}$, iar $R\in \left(AB\right)$ și $T \in \left(AC\right)$ astfel încât $m\left(\sphericalangle RBM\right) = \frac{1}{2} \cdot m\left(\sphericalangle RPM\right)$ și $m\left(\sphericalangle TPM\right) = 2 \cdot m\left(\sphericalangle TCM\right)$.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Fie triunghiul &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math&amp;gt;&lt;/ins&gt;ABC&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/math&amp;gt; &lt;/ins&gt;cu $m\left(\sphericalangle C\right) &amp;gt; 30^\circ$ și punctele $M$, $P$, $R$, $T$. Punctul $M$ este situat în interiorul triunghiului $ABC$ astfel încât $m\left(\sphericalangle BMA\right) = 120^\circ$ și $m\left(\sphericalangle BCM\right) = 30^\circ$, punctul $P\in \left(MD\right.$ astfel încât $\left[MP\right] \equiv \left[MB\right]$ cu $AM \cap BC = \left\{D\right\}$, iar $R\in \left(AB\right)$ și $T \in \left(AC\right)$ astfel încât $m\left(\sphericalangle RBM\right) = \frac{1}{2} \cdot m\left(\sphericalangle RPM\right)$ și $m\left(\sphericalangle TPM\right) = 2 \cdot m\left(\sphericalangle TCM\right)$.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8261&amp;oldid=prev</id>
		<title>Andrei.Horvat: Pagină nouă: &#039;&#039;&#039;E:14892 (Radu Pop &amp; Ienuțaș Vasile)&#039;&#039;&#039;  Fie triunghiul $ABC$ cu $m\left(\sphericalangle C\right) &gt; 30^\circ$ și punctele $M$, $P$, $R$, $T$. Punctul $M$ este situat în interiorul triunghiului $ABC$ astfel încât $m\left(\sphericalangle BMA\right) = 120^\circ$ și $m\left(\sphericalangle BCM\right) = 30^\circ$, punctul $P\in \left(MD\right.$ astfel încât $\left[MP\right] \equiv \left[MB\right]$ cu $AM \cap BC = \left\{D\right\}$, iar $R\in \left(AB\right)$ și $T \in...</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:14892&amp;diff=8261&amp;oldid=prev"/>
		<updated>2023-12-20T19:50:04Z</updated>

		<summary type="html">&lt;p&gt;Pagină nouă: &amp;#039;&amp;#039;&amp;#039;E:14892 (Radu Pop &amp;amp; Ienuțaș Vasile)&amp;#039;&amp;#039;&amp;#039;  Fie triunghiul $ABC$ cu $m\left(\sphericalangle C\right) &amp;gt; 30^\circ$ și punctele $M$, $P$, $R$, $T$. Punctul $M$ este situat în interiorul triunghiului $ABC$ astfel încât $m\left(\sphericalangle BMA\right) = 120^\circ$ și $m\left(\sphericalangle BCM\right) = 30^\circ$, punctul $P\in \left(MD\right.$ astfel încât $\left[MP\right] \equiv \left[MB\right]$ cu $AM \cap BC = \left\{D\right\}$, iar $R\in \left(AB\right)$ și $T \in...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;E:14892 (Radu Pop &amp;amp; Ienuțaș Vasile)&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
Fie triunghiul $ABC$ cu $m\left(\sphericalangle C\right) &amp;gt; 30^\circ$ și punctele $M$, $P$, $R$, $T$. Punctul $M$ este situat în interiorul triunghiului $ABC$ astfel încât $m\left(\sphericalangle BMA\right) = 120^\circ$ și $m\left(\sphericalangle BCM\right) = 30^\circ$, punctul $P\in \left(MD\right.$ astfel încât $\left[MP\right] \equiv \left[MB\right]$ cu $AM \cap BC = \left\{D\right\}$, iar $R\in \left(AB\right)$ și $T \in \left(AC\right)$ astfel încât $m\left(\sphericalangle RBM\right) = \frac{1}{2} \cdot m\left(\sphericalangle RPM\right)$ și $m\left(\sphericalangle TPM\right) = 2 \cdot m\left(\sphericalangle TCM\right)$.&lt;/div&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
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