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july00

03.06.2023

Mathematics

The formula of the volume of a cylinder:

$V=\pi r^2H$

r - a radius of a base
H - a height of a cylinder

We have:

$V=63,679\ ft^3\\H=30\ ft$

Substitute:

$\pi r^2\cdot30=63,679\ \ \ |:30\pi\\\\r^2=\dfrac{63,679}{30\pi}\to r=\sqrt{\dfrac{63,679\pi}{30}}\ ft\\\\r\approx81.66\ ft$

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