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28 June, 13:10

What is the radius of a circle in which a 30° arc is 2 inches long?

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  1. 28 June, 13:30
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    Arc length = (Ф°/360°) x 2π. R

    2 = (30°/360°) x 2π. R

    OR R = 12/π in = 3.82 in
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