Consider the solid S described below.(adsbygoogle = window.adsbygoogle || []).push({});

The base of S is a circular disk with radius 3r. Parallel cross-sections perpendicular to the base are squares.

Find the volume V of this solid.

I tried this....

A(x) = pi*r^2 = pi*(3r)^2 = pi*9r^2

V(x) = integral from 0 to 3r(pi*9r^2 dx) = pi*27r^3

Am I approaching this problem the wrong way? Thanks for the help!

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# Homework Help: Help with Volume circular disk.

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