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OpenStudy (anonymous):
A circle of radius r has a central angle of θ=15° which intercepts an arc of 27 inches. what is the value of radius r?
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OpenStudy (anonymous):
2 *pi * r= circumference
OpenStudy (anonymous):
2 *pi is in radians form convert that to degrees you get 2*pi=360 degrees
OpenStudy (anonymous):
15°/360°= x x*2*pi * r= 27
OpenStudy (anonymous):
solve for x first then solve for r
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