---
tag: 0MP9BCF6DP
kind: concept
name: Line
aliases: [straight-line]
msc: [51N20]
sources:
  - url: https://en.wikipedia.org/wiki/Line_(geometry)
    locator: lead section
same_as:
  wikidata: Q37105
  wikipedia: Line (geometry)
---

## Summary

A line is a straight figure of dimension one that extends without end in both directions. In a Euclidean space, through each two distinct points there is exactly one line.