find the volume of a cone that is 18in. high and has a 6 in radius

Answer 1

V=(1/3)*pi*r^2*h=pi*r^2*h/3

V=pi*6^2*18 / 3

V=3.14159*36*18 / 3

V=678.58344 in^3

Answer 2

find the volume of a sphere with a 15 in radius

Answer 3

In google type:
wikipedia sphere volume