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# Circle

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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