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27 October, 21:13

For a circle of radius 3 feet, find the arc length s subtended by a central angle of 57 degrees.

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  1. 27 October, 23:46
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    S = r π α / 180°

    r = 3 ft, α = 57°

    s = 3 · π · 57° / 180° = 19/20 π ft = 0.95 π ft ≈ 2.983 ft

    Answer: the arc length is 2.983 ft.
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