theorems-about-circles
Articles
- Clifford's circle theoremsSequence of theorems relating to sets of circles intersecting at a common point
- Five circles theoremDerives a pentagram from five chained circles centered on a common sixth circle
- Intersecting chords theoremGeometry theorem relating the line segments created by intersecting chords in a circle
- Intersecting secants theoremGeometry theorem relating line segments created by intersecting secants of a circle
- Seven circles theoremA chain of six circles tangent to a seventh circle and each to its 2 neighbors
- Six circles theoremRelates to a chain of six circles together with a triangle