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Calculati aria triunghiului ABC daca AC = 10 CM, BD = 6 CM unde D= pr AC B.

Răspuns :

A = AC·BD/2 = 10·6/2 = 30cm²
[tex]A _{triunghiuluiABC}= \frac{BD}{2}*AC=10* \frac{6}{2}= \frac{10*6}{2}= \frac{60}{2}=30 cm^{2} [/tex]