Question Number 206244 by cortano21 last updated on 10/Apr/24
$$\:\:\:\zeta \\ $$
Answered by A5T last updated on 10/Apr/24
$$\pi{r}_{{a}} ^{\mathrm{3}} =\pi{r}_{{b}} ^{\mathrm{3}} ×\frac{\mathrm{1}}{\mathrm{2}}\Rightarrow\frac{{r}_{{a}} }{{r}_{{b}} }=\frac{\mathrm{1}}{\:\sqrt[{\mathrm{3}}]{\mathrm{2}}} \\ $$