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13 July, 18:42

If a 10 cm radius wheel rotates through 2 radians how many meters has it rolled?

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  1. 13 July, 18:46
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    2 radians = 2 full rotations

    pi = 3.14

    circumference of wheel = 2 (pi) r

    = 20 * 3.14

    =62.8 cm

    = 0.628m

    meters rolled = 0.628 * 2

    =1.256 m
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