Question

if the ratio of the circumstances of two circles is 2:3 find the ratio between their areas​

Answer 1

Answer:

circumference =2πr

2πr1/2πr2=2/3

r1/r2=2/3

area=πr^2

πr1^2/πr2^2=?

r1^2/r2^2=(2/3) ^2

ratio of areas =4/9

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