I am having trouble understanding a question to a(adsbygoogle = window.adsbygoogle || []).push({});

volume problem.

The base of a solid S is a circle of radius two in the

xy plane centered at the origin. Cross-sections of

the solid perpendicular to the base are squares.

I am thinking y = 4-X^2. Where do I find the

shape for the squares? Can someone explain?

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# What does cross-sections perpendicular mean?

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