# Arc

## Arc

A portion of a curve.

• Arc of a graph
Line or edge that joins two consecutive vertices (distinct or not) of a directed graph.
• Arc of a circle
The portion of a circle between two given points on the circle.
• Arc of a curve
The portion of a curve between two points on the curve.

### Notation

The notation used to refer to an arc with endpoints A and B is: $$\stackrel{\frown}{\textrm{AB}}$$.

### Examples

• This graph is made up of ten arcs:
• In this figure, points A and B of the circle defines arc AB, which is denoted by: $$\stackrel{\frown}{\textrm{AB}}$$.