Question

2 и 3 сверху помогите

Answer 1

$S=\frac{Dh}{2}=\frac{2Rh}{2}=Rh=(8cos30^\circ)\cdot (8sin30^\circ )=8\cdot \frac{\sqrt3}{2}\cdot 4=16\sqrt3\\\\3)\; h=\sqrt{R^2-r^2}=\sqrt{6^2-(3\sqrt3)^2}=\sqrt{36-3\cdot 3}=3$