Question

Triunghiul ABC are AB=8,AC=8 si masura unghiului BAC=30 de grade.Calculati aria triunghiului ABC.

Answer 1

Poza conține rezolvarea.

Answer 2

$\displaystyle\\ Aria \Delta ABC = \frac{AB \times AC \times sin(BAC)}{2}=\\\\ = \frac{8 \times 8 \times sin(30^o)}{2}=\\\\ = \frac{8 \times 8 \times \dfrac{1}{2}}{2}=\\\\ = \frac{8 \times 8 }{2\times 2}=\\\\ = \frac{64}{4}= \boxed{\bf 16~cm^2}$