Question

The volume of a cylinder is 225pi in.Cubed and the height of the cylinder is 1 in. What is the radius of the? cylinder?

Answer 1

Answer:

r = 15 in

Step-by-step explanation:

The formula of a volume of a cylinder:

$V=\pi r^2H$

r - radius

H - height

We have

$V=225\pi in^3\\\\H=1\ in$

Substitute:

$225\pi=\pi r^2(1)$            divide both sides by π

$225=r^2\to r=\sqrt{225}\\\\r=15\ in$