Respuesta :

[tex]\bf \textit{surface area of a sphere}\\\\ SA=4\pi r^2~~ \begin{cases} r=radius\\ ------\\ SA=2122.64 \end{cases}\implies 2122.64=4\pi r^2 \\\\\\ \cfrac{2122.64}{4\pi }=r^2\implies \cfrac{530.66}{\pi }=r^2\implies \sqrt{\cfrac{530.66}{\pi }}=r[/tex]

Answer:

13

Step-by-step explanation:

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