Rationalize the Denominator $r = \sqrt { \frac { 3 V } { \pi h } }$

Multiple Choice

Rationalize the denominator. Assume that all variables represent nonnegative numbers and that the denominator is not
zero.
-The radius of a right circular cone is given by the formula $r = \sqrt { \frac { 3 V } { \pi h } }$ , where $V$ is the volume and $h$ is the height. If the volume is 552 cubic inches and the height is 13 inches, what is the radius? Use $3.14$ for $\pi$ , and round your answer to the nearest tenth of an inch.

A) 0.2 in.
B) 6.4 in.
C) 3.7 in.
D) 6.7 in.