Math
posted by Meghan .
A right circular cylinder with a height of 20 cm and a right circular cone share a circular base and have the same volume. What is the height of the cone?

Cone V = 1/3π(r^2)h
Cylinder V = π(r^2)h
1/3π(r^2)h = π(r^2)h
Dividing both sides by π(r^2) and inserting value for h:
1/3h = 20
h = ? 
20