maryannefishman maryannefishman

30-12-2021
Mathematics

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

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jdoe0001 jdoe0001

30-12-2021

[tex]\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[/tex]

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