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  • 14-07-2017
  • Mathematics
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Аноним Аноним
  • 14-07-2017
arc length of a circle=Ф/360º(2πr)
Ф=angle of the arc
r=radius

Data:
Ф=140º
r=diameter/2=(100 m)/2=50 m
π=3.14

arc length=(140º/360º)(2)(3.14)(50 m)=122.1111...m=122.1 m

Answer: A)  122.1 m
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