A line segment is a part of a line that has two defined endpoints. A line segment represents a collection of points inside the endpoints and it is named by its endpoints. A ray is a line that only has one defined endpoint and one side that extends endlessly away from the endpoint.What is a line segment called?
A line segment includes all points on the line within its end points. In a circle wherein both endpoints lie on a curve, it is called a chord. In polygons, such as triangles or squares, the sides are line segments called an edge or diagonal.