---
tag: 03VZJE6C8C
kind: concept
name: Circumcircle
aliases: [circumscribed-circle]
msc: [51M04]
sources:
  - url: https://en.wikipedia.org/wiki/Circumcircle
    locator: lead section
same_as:
  wikidata: Q2946460
  wikipedia: Circumcircle
---

## Summary

The circumcircle of a triangle is the circle that passes through its three vertices. Each triangle has exactly one circumcircle. Its centre is the circumcentre and its radius is the circumradius.