Question

In romb are latura de 6 cm si un unghi de 60°. Aria rombului este egala cu ...

Answer 1

$\small\sin60 {}^{\circ} = \tfrac{h}{6} \implies \: h = 6 \times \tfrac{ \sqrt{3} }{2} \implies \: h = 3 \sqrt{3} \: cm \\ \iff \: aria = 6\cdot3 \sqrt{3} = 18 \sqrt{3} \: \: cm²$