Cylinder Container

Question

A right cylinder container can hold 64 cubic meters of liquid when full. The height of the container is 4 cubic meters. What is the radius of the container in meters?

A. 4 m

B. 5 m

C. 6 m

D. 8 m

Answer 1

The volume of a cylinder is πr²h. I assume you mean that the height is 4 m, NOT 4 m³.

For this problem 64 = πr² * 4

16 = πr² and r = 4/√π...which is not listed among your possible answers.