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OpenStudy (anonymous):
A circle has a radius f length r. If you mark off an arc on the circle of length 3r, what is the measurement of the angle that subtends the arc ? A. 3pi radians B. 3radians C. 3r radians D. 3pi r radians
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OpenStudy (triciaal):
|dw:1405224616699:dw| angle /360 = 3r/2*PI *r
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