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11 March, 20:18

What is the arc length of arc cd in the circle below? circle a is shown with a radius labeled 10 feet and a central angle marked 40 degrees.

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  1. 11 March, 20:21
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    Hello,

    2*π*10-->360°

    2*π*10/360°-->1°

    2*π*10/360*40-->40°

    length of arc cd=20*π/9=6,9813 ... (ft)
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