SOLUTION: If the earth has a radius of 3,900 miles , what is the volume of the earth ?

Algebra ->  Test -> SOLUTION: If the earth has a radius of 3,900 miles , what is the volume of the earth ?      Log On


   

Question 656582: If the earth has a radius of 3,900 miles , what is the volume of the earth ?
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
Thanks to Archimedes (a Greek mathematician) who derived the formula for the volume
of a sphere to be V=%284%2F3%29pi%2Ar%5E3%29 where pi=3.14
if r=3900+mil, then
V=%284%2F3%29pi%2A%283900+mil%29%5E3%29
V=%284%2F3%293.14%2A%283900+mil%29%5E3%29
V=%284%2F3%293.14%2A%2859319000000mil%5E3%29
V=%284%2F3%29%28186261660000mil%5E3%29
V=%281.3333333333333333333333333333333%29%28186261660000mil%5E3%29
V=248348880000mil%5E3%29