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OpenStudy (anonymous):
The area of a circle is 28.26 square centimeters. What is its diameter (use 3.14 for ð)?
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OpenStudy (anonymous):
area of circle= pi*r^2 28.26=pi*r^2 28.26/3.14=r^2 sqrt9=r 3=r r=3 d=2r 2(3) 6
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