thank you very musch

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- Dec 22nd 2008, 07:50 PMhelloyingsphere and cone
thank you very musch

- Dec 22nd 2008, 08:59 PMGrandadSphere 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

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

where $\displaystyle x$ is half of angle AVB.

Can you do it now?

Grandad