How much is the bottom area of a cylindrical rubber clay with a bottom area of 12.56 square centimeter and a height of 9 centimeter made into a cone with a height of 18 centimeter square centimetre?

How much is the bottom area of a cylindrical rubber clay with a bottom area of 12.56 square centimeter and a height of 9 centimeter made into a cone with a height of 18 centimeter square centimetre?

Cylinder volume: 12.56 * 9 = 113.04 bottom area of cone: 113.04 * 3 / 18 = 18.84