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29 July, 10:47

the circumference of a circle is 11.4mm. find the length of the diameter. give your answer rounded to 3SF.

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  1. 29 July, 14:11
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    3.627 = d

    Step-by-step explanation:

    C = 11.4mm

    d = ?

    C = πd

    11.4 = 22/7 * d

    cross multiply

    11.4 * 7 = 22d

    79.8 = 22d

    Divide both sides of the equation b 22

    79.8/22 = 22d/22

    3.627 = d
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