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R1:R2 = 3:4
circumference = 2πR
ratio of circumference =
2πR1 : 2πR2
2π 3 : 2π 4
3:4
2 πR1 : 2πR2 = 3:4
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given r1/r2=3/4
ratios of cicumference of circles of radius r1,r2 is 2πr1/2πr2
fron this equation we get ratios as r1/r2
hence ratios of circumference of circles is 3/4 i.e, 3:4
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