# spherical trigonometry

> branch of spherical geometry that deals with the relationships between trigonometric functions of the sides and angles of the spherical polygons

**Wikidata**: [Q46463](https://www.wikidata.org/wiki/Q46463)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Spherical_trigonometry)  
**Source**: https://4ort.xyz/entity/spherical-trigonometry


## References

1. [Nuovo soggettario](https://thes.bncf.firenze.sbn.it/termine.php?id=38770)
2. Nuovo soggettario
3. Freebase Data Dumps. 2013
4. YSO-Wikidata mapping project
5. Quora
6. National Library of Israel
7. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)