The bottom area of a cone is 9 square centimeters and its volume is 15 cubic centimeters. What is its height?

The bottom area of a cone is 9 square centimeters and its volume is 15 cubic centimeters. What is its height?


15 × 3 △ 9, = 45 △ 9, = 5 (CM); a: its height is 5 cm