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3 June, 15:09

If a penny has a circumference of 59.69millimeters, what is the radius of a penny?

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  1. 3 June, 15:17
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    Answer: Circumference = 2 * pi * radius. So we just plug in our given information and solve for the missing variable.

    59.69 = 2r

    Divide both sides by to isolate the variable r.

    r = 59.69 /

    Put that into the calculator

    r ≈ 93.7608 mm
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