Question

The volume of a cylinder is 480 cm. The height of the cylinder is 30 cm. What is the radius of the

cylinder?
The radius of the cylinder is cm. (Simplify your answer.)

Answer 1

Explanation:

Given

Volume of Cylinder (V)= 480 cm

height (h) = 30 cm

radius (r) = ?

WE KNOW THAT WE HAVE FORMULA

Volume (V) =
`\pi r^(2) h`

480 = 3.14 * r^2 *30

480 = 94.2 r^2

480/94.2 = r^2

r^2 = 5.1

r =
`√(5.1)`

Therefore r = 2.3 cm