Find and interpret volume of prisms and cylinders using correct units.
Use base area times height
Problem
A prism has a base area of \(18~\text{square}~\text{units}\) and a height of \(7~\text{units}\). What is its volume?
Big Picture
What this problem is really about
A prism repeats the same base region through its perpendicular height. Since the base area is already supplied, use it directly as the amount in one layer and multiply by the height instead of reconstructing side lengths. Square units times a length unit become cubic units, matching the three-dimensional quantity.
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