nnalthabhani
nnalthabhani
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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