What is a line segment ? Definition and examples.

A line segment is part of a line consisting of two endpoints and all points between these endpoints. In the figure below, notice how segment AB is part of the line.

Line segment

Notice also that point A and point B are what we call endpoints.

Basically, if just draw a line between any two points, such as point A and point B, then you have drawn a line segment.

The symbol AB can be used to refer to the line segment above with endpoints A and B and it is read as line segment AB or simply segment AB.

More examples of line segments.

Line segments

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