line segment
part of a line with two endpoints
A line segment is a portion of a straight line that is bounded by two end points. It is a part of a larger line and has a definite length. In geometry, a line is considered to be infinite in both directions, but a line segment is only a portion of that infinite line with a finite length.
For example, if there is a straight line that extends from point A to point B, then a line segment would be a portion of that line that extends from point A to point B, including those two points. It is often represented by a line with a bar on top of it, denoting the two end points.
Line segments are used in various geometrical calculations and constructions. They can be measured in terms of their length, and the midpoint of a line segment can be calculated as well. Additionally, line segments can be used to construct other geometric forms, such as polygons and angles.
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