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line segment

Part of a line that is bounded by two distinct end points; line with two endpoints

EntityQ166154

Also known as line · segment · straight-line segment

Subclass of: dion
, arc
, line
Part of: line

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

In geometry, a line segment is a part of a straight line that is bounded by two distinct endpoints, and contains every point on the line that is between its endpoints. It is a special case of an arc, with zero curvature. The length of a line segment is given by the Euclidean distance between its endpoints. A closed line segment includes both endpoints, while an open line segment excludes both endpoints; a half-open line segment includes exactly one of the endpoints. In geometry, a line segment is often denoted using an overline (vinculum) above the symbols for the two endpoints, such as in AB. The infinite line containing a line segment is sometimes called the segment's supporting line.

Overview

All data

32 statements · 16% with external sources · numbers in brackets are citations

Different from: Q13370327 criterion used: descriptive page and disambiguation page have to be in different items
Has facet polytope: vertex quantity: 2
Followed by: triangle criterion used: simplex
Facet of: directed line segment
Has characteristic: arc length
curvature said to be the same as: zero
Has part(s) of the class: point

Data quality

statements

16%

externally sourced

Source last edited August 25, 2026. AIDB refreshes this page daily.

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AIDB. (2026). line segment (Q166154). Retrieved from https://aidb.si/e/line-segment-Q166154