Answer:
337.5 m³
Step-by-step explanation:
You want the volume of a triangular prism with a triangular base that is 9 m wide and 15 m high, if the prism is 5 m long.
The volume can be found from ...
V = BH
where B is the area of the triangular base, and H is the distance between those bases.
The area of the triangular base is ...
B = 1/2bh
where b is the base of the triangle, and h is its height.
Together, these formulas give the volume as ...
V = (1/2bh)H
V = 1/2(9 m)(15 m)(5 m) = 337.5 m³
The volume of the triangular prism is 337.5 cubic meters.