3.8 Exercise 76

Determine the function described and then use it to answer the question.

The volume of a cylinder , $V ,$ in terms of radius, $r ,$ and height, $h ,$ is given by $V = \pi r^{2} h .$ If a cylinder has a height of 6 meters, express the radius as a function of $V$ and find the radius of a cylinder with volume of 300 cubic meters.