#### Answer

$4 \pi$

#### Work Step by Step

The solid is a cylinder having a radius of $1$ and height $4$.
Thus, the volume of the cylinder is:
$Volume, V=\pi r^2 h=\pi \times (1)^2 \times (4) =4 \pi$

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Published by
W. H. Freeman

ISBN 10:
1464125260

ISBN 13:
978-1-46412-526-3

$4 \pi$

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