Accepted Answer
The volumes of spheres are proportional to R³. So their 'R's are proportional to ∛their volumes.(729/ 27) = 27∛27 = exactly 3 . No rounding required.
The volumes of spheres are proportional to R³. So their 'R's are proportional to ∛their volumes.(729/ 27) = 27∛27 = exactly 3 . No rounding required.