Editing 28338
Revision as of 21:24, 17 November 2023 by Pop Georgiana (talk | contribs) (Pagină nouă: '''28338 (Nicolae Muşuroia)''' ''Fie'' <math>M</math> ''un punct în planul triunghiului'' <math>ABC</math> ''iar'' <math>A_1, B_1, C_1</math> ''simetricele punctului <math>M</math> față de mijloacele laturilor'' <math>BC, AC,</math> ''respectiv'' <math>AB</math>''.'' ''a) Arătați că dreptele'' <math>AA_1, BB_1, CC_1</math> ''sunt concurente într-un punct'' <math>N</math>''.'' ''b) Arătați că punctele'' <math>M, G, N</math> ''sunt coliniare și că'' <math>\frac{...)
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