Question

A party hat has a diameter of 10 cm and is 15 cm tall. What is the volume of the hat?

Answer 1

V = 125 pi cm^3

V = 392.6990817 cm^3

Explanation:

Volume of a cone = 1/3 pi r^2 h

The diameter is two times the radius

d =2r

10 = 2r

10/2 = 2r/2

5 =r

V = 1/3 * pi * (5)^2 *15

= 1/3 * pi *25 *15

=125* pi

Approximate pi as 3.14

V = 392.6990817 cm^3