Question

Question #912b3

Answer 1

Let's give it a shot.

Explanation:

The circumference is `2pir`, so `16pi = 2pir`

...divide both sides by `2pi`, giving r:

`(16pi)/(2pi) = r = 8` inches

...now, the area of the circle is `pir^2`

`= pi * (8)^2 = pi * 64` square inches

...and the volume of a cylinder 5 inches high with this circle as the base is:

`64pi * 5 = 320pi` cubic inches.

Ima let you plug in the numbers in your calculator to calculate everything out.

GOOD LUCK!