Question 678725
The circumference of a sphere is:

{{{C=2*pi*r}}}...solve for {{{r}}}


{{{r=C/(2*pi)}}}


so, the radius of a ball with a circumference of {{{6pi}}} will be


{{{r=6pi/(2*pi)}}}


{{{r=cross(6)3cross(pi)/(cross(2)*cross(pi))}}}


{{{r=3}}}