---
tag: 0RCP929Y1M
kind: concept
name: Cyclic quadrilateral
aliases: [inscribed-quadrilateral]
msc: [51M04]
sources:
  - url: https://en.wikipedia.org/wiki/Cyclic_quadrilateral
    locator: lead section
same_as:
  wikidata: Q692086
  wikipedia: Cyclic quadrilateral
---

## Summary

A cyclic quadrilateral is a quadrilateral whose four vertices lie on one circle. Its sides are chords of that circle.