the wheel of a car rotated thousand times in travelling a distance of 1.76 km .find the radius of the wheel
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Distance of one rotation = 2 * pi * r
1000* 2 * pi * r = 1.76 km
2000 * 22/7 * r = 1760m
r = 1760 * 7 / 200*22
r = 176 * 7 / 440
r = 1232/440 = 2.8m
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