Question 178407
Note: if the diameter is 2.5, then the radius is 1.25


{{{V=(4/3)*pi*r^3}}} Start with the given volume of a sphere formula



{{{V = (4/3)*pi*(1.25)^3}}} Plug in {{{r=1.25}}}



{{{V = (4/3)*pi*(1.953)}}} Cube 2.5 to get 1.953



{{{V= 24.542/3}}} Multiply (note: I'm using 3.14 for pi)



{{{V= 8.180}}} Divide



So the volume to the nearest tenth of an inch is {{{V=8.2}}}