Question: Please help! A circle has a radius of length r . If you mark off an arc on the circle of length 4r, what is

Please help!

A circle has a radius of length r . If you mark off an arc on the circle of length 4r, what is the measurement of the angle that subtends the arc? A. 4x1 radians O B. 47 radians O C. 4r radians O D. 4 radians

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