Respuesta :

[tex]V=\frac{4}{3}\pi r^3[/tex]

we need to clear r

[tex]\begin{gathered} V=\frac{4}{3}\pi r^3 \\ 3V=4\pi r^3 \\ \frac{3V}{4\pi}=r^3 \\ r=\sqrt[3]{\frac{3V}{4\pi}} \end{gathered}[/tex]