A right circular cylinder and a cone have the same base radius and height. What is the ratio of their volumes (cylinder: cone)?
Show answer & explanation
Correct answer: C
Explanation
Given:
The radius of the cylinder and cone is the same = r
The height of the cylinder and cone is the same = h
By the formula:
Volume of the cylinder = πr²h
Volume of the cone = (1/3)πr²h
Cylinder : cone = πr²h : (1/3)πr²h = 3 : 1