Answer:
A
Step-by-step explanation:
The volume of the triangular prism is
[tex]V=A_{base}\cdot h,[/tex]
where
h = height
Base = triangle.
In your case,
[tex]A_{base}=\dfrac{1}{2}\cdot 4\cdot 4=8\ ft^2\\ \\h=1\ ft,[/tex]
then
[tex]V=8\cdot 1=8\ ft^3[/tex]
