Question

A horse is tied to a rope if the horse moves only along a circular path always keeping the rope tight and describes 88m when it has tracked the angle 72 degree at the center find the length of the rope

Answer 1

Angle in degree = 72o
Angle in radian = ​(π x 72)/180 = (π x 2)/5 

θ = Length of arc/radius
2π/5 = 88 / r
r = (88 x 5 x 7) / (2 x 22) = 70 m 
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Answer 2

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