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26 October, 23:46

A circle has a radius of 4ft. find the length s of the arc intercepted by a central angle of 156°.

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  1. 27 October, 00:19
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    The circumference = 2 pi r = 2*pi*4 = 8pi ft

    length of arc s = 8pi * 156/360 = 3.4667 pi = 10.89 feet to nearest hundredth
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