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Mathematics 16 Online
OpenStudy (anonymous):

how do you find the arc length in trig?

hero (hero):

Would you mind posting actual problem you're working on?

OpenStudy (e.mccormick):

Circumference is \(2\pi r\). Arc length is some percentage of the circumference. What percentage is found by taking the angle and dividing it by a full circle. In radians this is \(\dfrac{x}{2\pi}\) and in degrees it is \(\dfrac{x}{360}\) So you need to find the circumference and multiply it by the percentage.

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