What is the surface area of a sphere with a radius of nine units In pie

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asked Nov 12, 2022 154k views

2 votes

What is the surface area of a sphere with a radius of nine units In pie

Mathematics
college

Stanimir Stoyanov asked

by Stanimir Stoyanov

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$\textit{surface area of a sphere}\\\\ SA = 4\pi r^2~~ \begin{cases} r= radius\\[-0.5em] \hrulefill\\ r=9 \end{cases}\implies SA=4\pi (9)^2\implies SA=324\pi$

Chris Webb answered Nov 17, 2022

by Chris Webb

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