ANSWER:
669.87 cubic feet
STEP-BY-STEP EXPLANATION:
The volume of the cone is given as follows:
[tex]V=\frac{\pi\cdot r^2\cdot h}{3}[/tex]We know the value of the radius and height, we replace and calculate the volume:
[tex]\begin{gathered} V=\frac{3.14\cdot8^2\cdot10}{3} \\ V=669.87ft^3 \end{gathered}[/tex]Therefore, the volume of the cone is 669.87 cubic feet.