Question

What is the volume of a right circular cylinder with a radius of 4 feet and a height of 20 feet?

Answer 1

ANSWER

320π ft³

EXPLANATION

The volume of a cylinder with a radius r and a height h is,

$V=B\cdot h$

Where B is the area of the base, which is a circle, so the volume is,

$V=\pi\cdot r^2\cdot h$

In this case, r = 4 feet and h = 20 feet,

$V=\pi\cdot4^2ft^2\cdot20ft=\pi\cdot16\cdot20\text{ }ft^3=320\pi\text{ }ft^3$

Hence, the volume of this cylinder is 320π cubic feet.