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A circle has a area which …

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A circle has a area which is 100 times of another circle what is the ratio of their circumferences
  • 2 answers

Preeti Dabral 2 years ago

A1=100 A2A1 A2=100πr21πr22=100

r1r2=10 So, c1c2=2πr12πr2=r1r2=101

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