---
tag: 0YF6QXXWB5
kind: concept
name: Similar triangles
msc: [51M04]
sources:
  - url: https://en.wikipedia.org/wiki/Similarity_(geometry)
    locator: Similar triangles
---

## Summary

Two triangles are similar when they have the same shape, but possibly different sizes. Then one is a scaled copy of the other, after a rigid motion and possibly a reflection.