Mathematics and Society - OS X Lion Server

The volume formula for a sphere (ball) is:OR 1.3'5 '3.1"+ .,..~\, xrOR 1+.18' Y • r x YGiven the diameters of some balls, find their radius, then their volume.TABLE TI;.NNIS BALLBASEBALLSOCC£R0 ®BALL@"""iidiameter = 3.8 em diameter = 7.3 em diameter = 22 emradius = '! radius = i.ii ,;: -radius = " ('ii,volume = i)!). " volume = "i" " volume = !',i,; i "i",'•0I-lA\\lDBALL GOLF BALL,"Lccv-«DBALL ;,. "'''''U"'~BALL,'.;;... ::~:. :':diameter = 4.8 em diameter = 4.3 em diameter = 21 em diameter = 21.8 emradius = radius =, ' , radius = radius = " '.: ",volume = volume = ., "" volume = c ," volume = '''i', ) ,,"5HOT PUT BILLIARD BALL ,£:\\lNIS BALL(J G) Q)"""n-~~',' .:.:? BALL :,.",. ""':'~:i ·ti:~~diameter = 12 em diameter = 5.7 em diameter = 6.4 em diameter = 24.4 emradius = radius = .' r,' radius = : ) ,radius =') ) ),volume = ','!) , ...., volume ,..= '::'. ivolume = i ,ii volume" = ,cc ) .,.,;,'Finding the volume of a football is much more difficult. It's shape is called a prolatespheroid. A football has a long diameter of 53 em and a short diameter of 28 em. The~ireum£erenee around the fattest part of the football is about 71 em. Do you have anysuggestions for finding the volume of a football?391