If the radius of the sphere above is 5 inches, what is the volume of the sphere? (Assume pi = 3.14)
V,sphere = (4/3)*pi*r^3
V,sphere = (4/3)*3.14*5^3
then solve for V. (units in inch^3)
Sometimes you easy find formulas for homeworks probles.Just in wikipedia type what you need. In this case type sphare and you will have all about spare. Sometime use wikipedija.