EXPLANATION
Let's see the facts:
The volume of the ramp is equivalent to the volume of a triangular prism volume.
It is given by the following equation:
[tex]\text{Volume}=\frac{1}{2}\cdot b\cdot h\cdot l[/tex]
Where, b=12 ft, l= 8ft, h=5ft
Replacing terms:
[tex]Volume=\frac{1}{2}\cdot12\cdot5\cdot8[/tex]
Multiplying numbers:
[tex]\text{Volume}=\frac{1}{2}\cdot480=240[/tex]
The volume of the ramp is 240 ft^3
