# Steiner–Lehmus theorem

> theorem that a triangle with two angle bisectors of equal lengths is isosceles

**Wikidata**: [Q1631992](https://www.wikidata.org/wiki/Q1631992)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Steiner–Lehmus_theorem)  
**Source**: https://4ort.xyz/entity/steiner-lehmus-theorem


## References

1. Freebase Data Dumps. 2013