List of circle topics


This list of circle topics includes things related to the geometric shape, either abstractly, as in idealizations studied by geometers, or concretely in physical space. It does not include metaphors like "inner circle" or "circular reasoning" in which the word does not refer literally to the geometric shape.

Geometry and other areas of mathematics

Circle
; Circle anatomyMeasurement of a Circle
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; Specific circles
; Circle-derived entities
; Circle-related theory
; Circle tangents in non-geometric theory
; Other topics

Physical sciences and engineering

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Geography

Artifacts

Glyphs and symbols