Answer:
2279.64 cubic feet
Explanation:
the volume of a cone is b(h)*1/3
first lets find the base volume
that is the circle
circle area formula is (3.14)r^2
so
11*11*3.14
which is
379.94
now plug the other things in
379.94(18)*1/3 = 2279.64
that is your answer