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17 December, 11:27

Given arc CD is a semicircle, classify arc ED.

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  1. 17 December, 12:10
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    Find the angle for arc ED / θ measured in radians.

    If you have angle for arc CD, use this formula for arc length:

    (x°/360°) * 2πr

    If you have angle measured in radians, use this formula to find arc length:

    rθ (θ in radians)
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