Arc Length - Formula, How to Find Length of an Arc

Arc of a circle is a portion of its circumference. Thus, the arc length of a circle is a fraction of its circumference. If θ degrees is the central angle made by an arc of a circle, then the arc length formula is θ/360 x 2πr.

4.2: Arc Length - Mathematics LibreTexts

Arc Length

Worked example: arc length (video)

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Arc Length

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18.2 Calculating Arc Length