Jacey231
Jacey231 Jacey231
  • 21-07-2017
  • Mathematics
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given to circles who's radii are 70" and 49" the ratio of their circumfrences is

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apologiabiology
apologiabiology apologiabiology
  • 21-07-2017
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
Answer Link
koziadam koziadam
  • 21-07-2017
The ratio is 10:7 you are welcome :)
Answer Link

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