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Trigonometry
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OpenStudy (anonymous):
A circle has a radius that is 3 centimeters long. If a central angle has a measure of 4 radians, what is the length of the arc that corresponds to the angle? A. 4 centimeters B. 7 centimeters C. 12 centimeters D. 3 centimeters
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OpenStudy (anonymous):
the formula for the arc length is \[S = \theta * r \] where S is the arc length and the r is the radius the theta is the angle
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