The volume of the frustum of a cone is `(1)/(3) pih [r_(1)^(2) +r_(2)^(2)- r_(1)r_(2)]`, where h is vertical height of the frustum and `r_(1), r_(2)` are the radii of the ends.

Explanation

False
Since, the volume of the frustum of a come is `(1)/(3) pi h [r_(1)^(2) +r_(2)^(2) + r_(1)r_(2)]` where h is vertical height of the frustum and `r_(1),r_(2)` are the radii of the ends.