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OpenStudy (anonymous):
If arc AB measures 155 what is the length of the radius of the circle to the nearest hundredth?
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OpenStudy (anonymous):
Not enough info given, I think. You'd also need either the length of the segment AB or the angle of the arc.
OpenStudy (anonymous):
the length of segment AB is 14 cm
OpenStudy (anonymous):
the length of segment AB is 14 cm
OpenStudy (anonymous):
Using the law of cosines and the relationship between the arc and the angle and radius, you get a system of two equations with two unknowns.
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