What is the exact volume of the cone?
80π ft³
400/3π ft³
400π ft³
4187/10π ft³

volume for a cone = PI x r^2 x h/3
r = 5 ft so r^2 = 5^2 = 25
h = 16
volume = PI x 25x 16/3
25*16 = 400
volume = 400/3xPI
Answer is B