---
tag: 01KJJ9A400
kind: concept
name: Regular polygon
msc: [51M20]
sources:
  - url: https://en.wikipedia.org/wiki/Regular_polygon
    locator: lead section
same_as:
  wikidata: Q714886
  wikipedia: Regular polygon
---

## Summary

A regular polygon is a polygon with all sides of the same length and all angles of the same size. Its vertices lie on one circle. Examples are the equilateral triangle and the square.