Answer
22.5 $ft^{3}$
Work Step by Step
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$ft^{3}$
