arc length
The length of an arc. It can be found with integration.

The length of an arc on a circle can be found as follows: if symbol theta is the degree measure of an arc, (symbol theta/360) gives the percentage of the complete circle occupied by the arc. Thus, the length of the arc is (symbol theta/360)(2symbol PIr) in which r is the radius of the circle.

Related Terms: arc, circle, integration, radius (of a circle)

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