Question

A cylinder has a height of 8 feet and a volume of 628 ft.³ Find the radius of the cylinder. Use 3.14 for Pi. Show your work.

Answer 1

Hi there!

Volume = pi * r^2 * h
628 = 3/14*r^2*8

Now, we simplify:
628=25.12 * r^2
25 = r^2

r = 5

Hope this helps!

Answer 2

To find the Volume of a cylinder use

`V=3.14 r^(2) h`

`628=3.14 r^(2) (8)`
multiply 3.14 by 8

`628=25.12 r^(2)`
Divide by 25.12 on both sides

`25= r^(2)`
Find square root of both sides

`√(25) = \sqrt{ r^(2) }`

`5 = r`