http://i667.photobucket.com/albums/v...conesphere.jpg

That's a question on my textbook.... i can't solve it and my teacher is away. Anyone help?

Thanks.

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- Mar 15th 2009, 10:15 PManonymous_mathsSphere in Cone Geometry
http://i667.photobucket.com/albums/v...conesphere.jpg

That's a question on my textbook.... i can't solve it and my teacher is away. Anyone help?

Thanks. - Mar 16th 2009, 01:05 AMearboth
- Mar 16th 2009, 08:08 AMearboth
Let h denote the height of the cone. Then:

The volume of a cone is calculated by:

That means:

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From a) you know that

The volume of the sphere is calculated by:

That means:

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The percentage is calculated by