Pi(r^2)(12)=324 , how do you find the radius of this equation?

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25 votes

Answer:

$r=\sqrt{(27)/(\pi ) }$

Explanation:

$\pi r^(2) (12)=324$

$\pi r^(2) =27$

$r^(2) =(27)/(\pi )$

$r=\sqrt{(27)/(\pi ) }$

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