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Find the radius of a circle so that its area and circumference have the same value
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Find the radius of a circle so that its area and circumference have the same value

User Sen Alexandru
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1 Answer

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Area = pir^2
Circumference = pi * diameter
You can cancel out pi since both equations have it; now if r^2=d then r has to be 2 as 2^2=4 and d=2r so if r is 2 d=2(2) = 4
User Rajnikant Kakadiya
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