What is the notation for line segment?
Andrew Rivera
Updated on April 08, 2026
What is the notation for line segment?
| Geometric Symbol | Interpretation |
|---|---|
| Line Segment | |
| → or ← | Ray |
| || | Parallel |
| ⊥ | Perpendicular |
What is the notation of a ray?
A ray is a half-line, together with its endpoint. If a ray has endpoint A , and if B is any other point on the half-line, then the ray will be denoted by −−→AB A B → .
How do you write a line segment?
In geometry, you will write a line segment using the letters for each of the end points and a line over the top of the letters. For example, if your end points were A and B, then you would write your line segment AB with a line over the top.
What is the notation for opposite rays?
Rays are always named with two points and the first point in the name must be the endpoint. So, when you name opposite rays, the first letter in the name of both rays must be the same. The three points involved in naming a pair of opposite rays must always lie on one straight line.
How do you write a ray?
A ray is named using its endpoint first, and then any other point on the ray (for example, →BA ).
Do opposite rays form a line?
A pair of opposite rays are two rays that have the ‘same endpoint and extend in opposite directions. So, together a pair of opposite rays always forms a straight line.
What does bisecting a line segment mean?
To bisect a segment or an angle means to divide it into two congruent parts. A bisector of a line segment will pass through the midpoint of the line segment. A perpendicular bisector of a segment passes through the midpoint of the line segment and is perpendicular to the line segment.
Can a ray have a line segment?
A line-segment may be also a part of ray. In the figure below, a line segment AB has two end points A and B. It is a part of a ray starting from A.
