If an arc makes an angle of 72° at the center of a circle of radius 10 cm, its length is
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length of the arc is = theta /360*2πr
length = 72/360*2π10
length = 1/5*20π
length = 4*22/7
length = 88/7
length = 12.571 approximately
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Answer:
=72/360×2×22/7×10
=8ans
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