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Circle arc length

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Circle has radius of 3 inches, what's the length of the arc that subtends to a central angle of 168 degrees?
asked Jul 1, 2016 in PRECALCULUS by anonymous
reshown Jul 2, 2016 by goushi
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1 Answer

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Circle radius is image.

Central angle image.

Find length of the Arc.

image

Formula for circle arc length image.

Substitute image and image.

image

Circle arc length is image.

answered Jul 2, 2016 by Anney Mentor

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