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03-08-2016
Mathematics

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one circle has a circumference of 12 pi . another circle has a circumference of 32 pi . what is the ratio of the radius of the smaller circle to the radius of the larger circle?

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mjennym mjennym

03-08-2016

circumference=pi * 2 radius=12pi, radius(small)=6;
circumference=pi * 2 radius=32pi, radius(small)=16;
6:16=3:8

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