Question

The height of a cone is two times its base diameter. What is the volume of the cone in terms of its base radius r?

Answer 1

`V= (1)/(3) \pi r^(2) h`
h=2d d=2r h=4r

`V= (1)/(3) \pi r^(2) (4r) = 4 (1)/(3) \pi r^(3) = 13.6 r^(3)`

Hope that helps