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OpenStudy (anonymous):
Someone help me understand how do we conclude, the area of circles is pi * radius squared?
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OpenStudy (cggurumanjunath):
www.proofwiki.org/wiki/Area_of_Circle
OpenStudy (cggurumanjunath):
http://math.stackexchange.com/questions/187987/calculus-proof-for-the-area-of-a-circle
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