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23 May, 21:56

Question 27 a circle has a radius of 12in. find the length s of the arc intercepted by a central angle of 89°.

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  1. 23 May, 22:07
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    Circumference of the circle = 2pi r = 2pi * 12 = 24pi

    By proportion the length s of the arc = 24 pi * 89 / 360 = 18,64 inches
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