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Archimedean circle

circle in the arbelos congruent to the twin circles
Class type of: circle Q4786887

Facts

3 properties
Subclass of
circle[1]
Defining formula
\rho=\frac{1}{2}r\left(1-r\right)[2]
Maintained by WikiProject
WikiProject Mathematics[3]
🏷️ Also known as
en Archimedean circle ar دائرة أرخميدية de archimedischer Kreis el Αρχιμήδειος κύκλος es círculos arquimedianos ja アルキメデスの円 nl archimedische cirkel ru архимедова окружность ru окружность Архимеда
🔖 Identifiers · 3
Freebase ID
/m/04jpq49
MathWorld ID
ArchimedeanCircle
Microsoft Academic ID (discontinued)
2780973348

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Examples 1
Bankoff circle
Maintained by WikiProject 1
WikiProject Mathematics
Subclass of 1
circle
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References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [1] ↑ . wikidata.org.
  2. [2] ↑ . wikidata.org.
  3. [3] ↑ . wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Archimedean circle. Retrieved November 4, 2026, from https://4ort.xyz/entity/archimedean-circle
MLA “Archimedean circle.” 4ort.xyz Knowledge Graph, 4ort.xyz, 4 Nov. 2026, https://4ort.xyz/entity/archimedean-circle.
BibTeX @misc{4ortxyz_archimedean-circle_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Archimedean circle}}, year = {2026}, url = {https://4ort.xyz/entity/archimedean-circle}, note = {Accessed: 2026-11-04}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Archimedean circle — https://4ort.xyz/entity/archimedean-circle (retrieved 2026-11-04)

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