Question

If the height of a cone is 18 cm and the volume is 924 cu cm, find the radius of its base.

Answer 1

v=924cm^3
h=18
v=phi×r^2h
924=3.14×r^2×18
r^2=924/56.52
r^2=16.34
$\sqrt{ 16.34}$
r=4.04 approximately