The length of an arc depends on the radius of a circle and the central angle th. To indicate it the arc is preceded by the lowercase letter L for length. The arc length is then given by.
The arc length formula is used to find the length of an arc of a circle.
Arc length formula is used to calculate the measure of the distance along the curved line making. This angle measure can be in radians or degrees and we can easily convert between each with the formula p radians 180 p r a d i a n s 180. L r x theta. This is the same as the degrees version but in the degrees case the 2p360 converts the degrees to radians.