# Pre-Algebra Practice Questions: Finding the Volume of Prisms and Cylinders

To find the volume of a prism or cylinder, you can use the following formula, where *A _{b}* is the area of the base and

*h*is the height:

## Practice questions

- Find the volume of a prism with a base that has an area of 6 square centimeters and a height of 3 centimeters.
- Figure out the approximate volume of a cylinder whose base has a radius of 7 millimeters and whose height is 16 millimeters.

## Answers and explanations

- 18 cubic centimeters

- Approximately 2,461.76 cubic millimeters
First, use the area formula for a circle to find the area of the base:

Plug this result into the formula for the volume of a cylinder: