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OpenStudy (anonymous):
what is the length of the arc on a circle with radius 20in intercepted by a 15 degree angle use pi=3.14
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OpenStudy (mathmale):
What is the formula for "arc length" when the radius of a circle is given, as is the central angle that defines the arc?
OpenStudy (amity):
15/180 (pi r)=3.14(20)/12=62.8/12=5.23in
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