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OpenStudy (keana):
Find the area of a circle with a diameter of 20 inches. Use 3.14 for pi 62.8 in^2 125.6 in^2 188.4 in^2 314 in^2 <<<
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OpenStudy (ipwnbunnies):
\[\large Area of a circle = \pi r^{2}\]
OpenStudy (ipwnbunnies):
\[diameter = 2r\]
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