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Revolution = full 360 degree turn

Hence, after one revolution, the distance it travels is the perameter of the circle.

After 2 revolutions each = 2 complete turns each = 2 x perimeter each = 2 x perimeter x 2

Perimeter of circle = 2rπ = 2 x 7 x 22 ÷7 = 44 cm

Distance =  44 x 4 = 176 cm

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