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11 July, 03:16

Nick is making a model of a car to show at his school. The circumference of each wheel is 9.42 inches. What is the diameter of the wheel?

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  1. 11 July, 03:22
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    Perimeter = 2 pi r

    9.42 = 2 * 22/7 * r

    9.42 * 7 / 22 * 2 = r

    r = 1.5 inches

    Diameter = 2r

    = 2 * 1.5 = 3

    Therefore, diameter = 3 inches
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