2 Answers

Daniele Grattarola · Answer 1 · 2020-10-16T12:23:57+0000

a.12.56

b.84.82

Explanation:

you have to do 3 * 3 * π * 3 and you get 12.56

with b you have to do π * 1 * 1 * 4 and you will get 84.82

Pius Lee · Answer 2 · 2020-10-18T22:36:11+0000

Answer:

a.
$V=84.82\ in^3$

b.
$V=12.57\ in^3$

Explanation:

The formula for calculating the volume of a cylinder is the following:

$V=\pi r^2h$

Where r is the radius of the cylinder and h is the height of the cylinder

So for the first cylinder we have to:

r = 3 inches, h = 3 inches

$V=\pi (3)^2(3)$

$V=27\pi$

$V=84.82\ in^3$

For the second cylinder we have to:

r = 1 meter, h = 4 meters

$V=\pi (1)^2(4)$

$V=4\pi$

$V=12.57\ in^3$

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