Math Help - homework about geometry

1. homework about geometry

what is the ratio of the volumes of a sphere and a cone with the base diameter and the altitude of the cone equal to the diameter of the sphere?

2. Originally Posted by hamadouousmane
what is the ratio of the volumes of a sphere and a cone with the base diameter and the altitude of the cone equal to the diameter of the sphere?
Use the formulas to calculate the volumes.

You finally get:

$V_{sphere}\ :\ V_{cone} = 4\ : \ 1$