The figure is a triangular prism
The volume of a triangular prism is:
[tex]\begin{gathered} V=\text{base area}\times height \\ \text{height of the prism = 25ft} \end{gathered}[/tex]
The base is a triangle, hence the base area is:
[tex]\begin{gathered} \frac{1}{2}\times base\times height \\ =\frac{1}{2}\times12\times20=120ft^2 \end{gathered}[/tex]
Hence, the volume of the triangular prism is:
[tex]120ft^2\times25ft=3000ft^3[/tex]
The Volume is 3,000 ft^3
