what is diam. if circumference is 32"??
what is volume of a football that is 16" circumference at wides part and 21" circumference on length?
c = pi*d
so,
d = c/pi
a football is roughly a prolate spheroid. So, given radii of a,a and b, the volume is
v = 4/3 pi a^2b
a = 16/pi
b = 21/pi