---
tag: 0V3XAMF3C1
kind: concept
name: Plane
msc: [51N20]
sources:
  - url: https://en.wikipedia.org/wiki/Plane_(mathematics)
    locator: lead section
same_as:
  wikidata: Q135218320
  wikipedia: Plane (mathematics)
---

## Summary

A plane is a flat surface of dimension two that extends without end. It is the two-dimensional analogue of a point, which has dimension zero, and of a line, which has dimension one.