For this case, what you must keep in mind is that the volume of a triangular prism is the product of the area of the base by height.
We observed that:
V = (15) * (20) = 300
The numeric value is correct.
However, the units are not because the volume is expressed in:
units ^ 3
Answer:
"a triangular prism has a height of 15 inches and a base area of 20 square inches. The volume of the prism is 300 CUBIC inches. "