The volume of a right circular cone is 1,884 in3. If the height of the cone is 18 in, what is the diameter of the cone? (Use pi = 3.14)
V=Pi x r^2 x h/3
1,884 = Pi x r^2 x 18/3
1,884 = Pi x r^2 x 6
314 = Pi x r^2
r^2 =314 / Pi
r =sqrt(100) =10 - inches - the radius of the cone
10 x 2 = 20 inches - the diameter of the cone.