Question 1124142
you calculate the volume of a {{{sphere}}} using the formula 

{{{V = (4/3)r^3*pi}}}

if given {{{V = 1000cm^3}}}, we have

{{{1000cm^3 = (4/3)r^3*pi}}}...solve for {{{r}}}

{{{(3*1000cm^3) = 4r^3*pi}}}

{{{(3000/(4pi))cm^3 = r^3}}}

{{{r^3=(750/pi )cm^3}}}

{{{r^3=238.73cm^3 }}}

{{{r=root(3,238.73cm^3) }}}

{{{r}}}≈{{{6.2cm }}}