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An athlete runs around a circular park 10 times. If the diameter of park is 280m. Find the distance covered by the athlete in km




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The radius of the circular path in which the athlete runs = 280/2 = 140 m

distance covered in one round of the path = circumference
   = 2π R = 22 /7 * 2 * 140 m = 880 m

in 10 rounds the distance covered = 880 * 10 m = 8800 m = 8.800 km

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