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OpenStudy (anonymous):
The ratio of the radii of two circles is 4:5. What is the ratio of the circumferences of the two circles?
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OpenStudy (anonymous):
4:5
OpenStudy (anonymous):
since ratio of circumfarance of circle is 2pi r1/ 2 pi r2
OpenStudy (anonymous):
and |dw:1398104815264:dw|
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