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What is the degree measure of an arc 4 pi feet long in a circle radius of a 10 foot radius
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What is the degree measure of an arc 4 pi feet long in a circle radius of a 10 foot radius

User Steph Rose
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1 Answer

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circumference = 2 pi r = 20 pi
corresponding to 360 degrees

so an arc of 4pi feet will have a degree measure of 5pi / 20pi * 360 = 1/4 * 360 = 90 degrees
User Junichi Ito
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