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    ljmcrae's Avatar
    ljmcrae Posts: 1, Reputation: 1
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    #1

    Mar 25, 2009, 03:19 AM
    Transposing Arc Length Equations
    I would like to know how to transpose the following equation to make x the subject given that it is based on the formula for arc length - Arc Length = angle size/360 x 2 pi r

    The equation is expressed with all given information:

    15 = 40/360 x 2 pi x
    ROLCAM's Avatar
    ROLCAM Posts: 1,420, Reputation: 23
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    #2

    Mar 25, 2009, 05:52 AM

    15 = 40/360 x 2 pi x

    15 = 1/9 * 44/7 x

    15 = 44/63 x

    x = (15) / (44/63)

    x = 945/44

    x = 21.47727
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