Math, asked by shivnathmahato, 1 year ago

The ratio of the radii of the circle is 3:5. Find the ratio of areas

Answers

Answered by Kanagasabapathy

5

area of the circle =πr^2
a1=πr1^2...,,a2=πr2^2
a1/a2 = 3x3 / 5x5 =9 / 25
then.. a1:a2=9:25

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