A road roller makes 200 rotations in covering 2200m.find the radius of the roller.
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Distance covered in 200 rotations = 200 × 2πr = 400πr = 2200 m
=> r = 2200/400π = 2200×7/400×22 = 1.75 m Ans.
=> r = 2200/400π = 2200×7/400×22 = 1.75 m Ans.
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