Apply Volume Formulas to Prisms Practice Test

A right rectangular prism is built from 1-unit cubes. It has length 6 units, width 3 units, and height 7 units. The base is the 6-by-3 rectangle, and the height is 7 units. Since cube-packing counts how many cubes fit, the formulas should match that count. What is the volume of the prism?

A right rectangular prism has length 9 units, width 2 units, and height 5 units. The base is the 9-by-2 rectangle, and the height is 5 units. Packing 1-unit cubes makes layers, and each layer has the same number of cubes as the base area. How does the base area help find the volume?