Consider the solid S described below.

A right circular cone with height 7h and base radius 2r
Find the volume V of this solid

2 answers

Use the standard formula for a cone.

V = (1/3) pi*r^2*h

It makes no sense to call the height 7h and the radius 2r, unless you are comparing two different cones.

h and r are the height and radius, respectively

This is not calculus
It's calculus and it's in my homework.