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Mathematics 16 Online
OpenStudy (momo):

could someone give me a formula to find an arc?

OpenStudy (anonymous):

need more information...arc length? angle of an arc?

OpenStudy (momo):

arc length

OpenStudy (anonymous):

usually that is radius times central angle theta

OpenStudy (anonymous):

\[s = r \theta\]

OpenStudy (momo):

how do i know what theta is?

OpenStudy (anonymous):

well, that depends on the problem. an arc is part of a circle, and each end of the arc is connected to the center of the circle by a radius. the angle between the two radii is theta Lots of ways to find theta, depending on what information you've been given

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