## Geometry: Common Core (15th Edition)

22.5 $ft^{3}$
To find the volume of a triangular prism, we simply use the formula V=$\frac{1}{2}$bhl, where b is the base, h is the height,and l is the length. We plug in the values for length, width, and height: V=$\frac{1}{2}$(3ft)(3ft)(5ft) We multiply to find the volume: V=22.5$ft^{3}$