# Archimedes' twin circles

> two congruent circles within an arbelos, tangent to a segment perpendicular to the base

**Wikidata**: [Q244780](https://www.wikidata.org/wiki/Q244780)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Twin_circles)  
**Source**: https://4ort.xyz/entity/archimedes-twin-circles


## References

1. Freebase Data Dumps. 2013