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Arc length is the distance along the curved line of an arc from one endpoint to the other. It is measured in the same units as the radius of the arc.
Arc length can be calculated using the formula L = rθ, where L is the arc length, r is the radius of the arc, and θ is the central angle in radians.
Arc length is the actual distance along the arc, while arc measure is the size of the central angle subtended by the arc. Arc measure is measured in degrees or radians, while arc length is measured in units of length.
No, arc length cannot be negative. It is always a positive value, as it represents a distance.
Arc length is a fraction of the circumference of a circle. The fraction is determined by the central angle subtended by the arc. For example, if the central angle is 90 degrees, the arc length will be one-fourth of the circumference of the circle.