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Given to circles who's radii are 70" and 49" the ratio of their circumfrences is
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Given to circles who's radii are 70" and 49" the ratio of their circumfrences is

User Phil Young
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The ratio is 10:7 you are welcome :)
User Safiyya
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4 votes
c=2pir

first one is r=70
c=2pi70=140pi

2nd one is 49=r
c=2pir
c=2pi49
c=98pi

ratio is
140pi:98pi=10:7
User Dmitry Mugtasimov
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