A comune of its province, located at the southern entrance of the Strait of Messina, is to this day called 'Scaletta Zanclea'. In the early 5th century BC, Anaxilas of Rhegium renamed it Messene (Î¼ÎµÏÏÎ®Î½Î·) in honour of the Greek city Messene (Greek: Î¼ÎµÏÏÎ®Î½Î·).
Definition of Arc. An Arc is a curved line that is a part of a circle. An Arc is a part of the circumference of a circle.
Arc Length. Definition: The distance along the curved line making up the arc. (See also Angle measure of an arc .). Try this Drag one of the orange dots that define the endpoints of the blue arc. The arc length will be continuously calculated. The arc length is the measure of the distance along the curved line making up the arc. It is longer than the straight line distance between its endpoints (which would be a chord).