Math Help - sphere and cone

1. sphere and cone

thank you very musch

2. Sphere and cone

Hello helloying -

The distance from the centre of the sphere to the base of the cone = radius of sphere = 3 cm.

So the distance of the centre of the sphere to the vertex of the cone = 9 - 3 = 6 cm. So

$\sin x = \frac{3}{6}$

where
$x$ is half of angle AVB.

Can you do it now?