A line segment, also known as an interval or closed interval, is 2 connected points.
A circle can be made by rotating a line segment around the middle axis.
People often refer to it as a line. A proper line has infinite length. They refer to a line segment when they mean line.
A line segment is actually made of an infinite number of points as the line connecting the two points is made up of an infinite number of points.
The line segment can be given a symbol in two ways:
- x - two equivalent vertices
- oo&#x - two distinct vertices
- Vertex radius:
All points on the surface of a line, a point pair can be given by the equation
where l is the length of the line segment.
A line segment of length 2 has the vertex coordinates (±1).
- Toratopic notation:
- Tapertopic notation:
- Dual: self dual
- Vertex figure: Point
|Cosmotopes||Point||Line segment||Pentagon||Dodecahedron||Hecatonicosachoron||Order-3 hecatonicosachoric honeycomb|
|Hydrotopes||Point||Line segment||Pentagon||Icosahedron||Hexacosichoron||Order-5 pentachoric honeycomb|