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jmc

geometry intermediate

Problem

A right rectangular prism has a base area one-quarter the base area of a larger right rectangular prism. The height of the smaller prism is half the height of the larger one. What is the ratio of the volume of the smaller prism to the volume of the larger prism? Express your answer as a common fraction.
Solution
The volume of a right rectangular prism is equal to the product of the base area and the height. So if the base area of the smaller prism is the base area of the larger prism, and the height of the smaller prism is the height of the larger prism, the volume of the smaller prism is the volume of the larger prism.
Final answer
\frac{1}{8}