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A circle is centered at O.  Find the radius of the circle.

 

 Feb 12, 2022
 #1
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Dude.. they already told you the area of a circle...πr^2. If you know that the area is 9πft^2, then r = ___ft. 

 

Hint: 3^2 = 9.

 Feb 12, 2022
 #2
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The problem gave you the area \(9\pi\)\(ft^2\), I think you could figure it out from there.

 Feb 12, 2022

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