Question

The volume of a cone is 108 pi cubic inches. Its height is 4 inches. What is the radius of the cone? Round the answer to the nearest tenth if necessary.

5.2 in.
9 in.
34.7 in.
81 in.

Answer 1

B

Explanation:

If you have 108 pi and then you divided it to find the radius and all that stuffy stuff you will end up getting 9 and if you dont want to do it that way just substitute each one of the answer chooses as the radius until the volume gets you 108 pi cubic inches.

Answer 2

Explanation:

V = 108π in³

h = 4 in

r = √(3V/(πh)) = 9 in