# Volume of Ring-Shaped Solid and Volume Expressed in Terms of Height

A) A cylindrical drill with radius r1 is used to bore a hole through the center of a sphere of radius r2. Find the volume of the ring-shaped solid that remains.

b) Express the volume in part (a) in terms of the height h of the ring. Notice that the volume depends only on h, not on r1 and r2.

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#### Solution Summary

Volume of Ring-Shaped Solid is found and the Volume of that solid is Expressed in Terms of its Height. The solution is detailed and well presented.

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