Question

ex 31 si 32 va rog din suflet! Dau coroana!​

Answer 1

31.

$\it \mathcal{A}=\dfrac{AC\cdot BD\cdot sin60^o}{2}=\dfrac{4\cdot6\cdot\dfrac{\sqrt3}{2}}{2}=\dfrac{24\sqrt3}{2\cdot2}=6\sqrt3\ cm^2$