Listed below are various geometry resources including books, classes, websites, and computer software.
- The Art of Problem Solving Introduction to Geometry by Richard Rusczyk
- Challenging Problems in Geometry by Salkind Posamentier
- Advanced Euclidean Geometryby Roger Johnson
- Elementary Vector Geometry
- Advanced Euclidean Geometry by Salkind Posamentier
- Geometry Revisited by Coxeter and Greitzer
- Geometry Unbound by Kiran Kedlaya
- Euclidean Geometry in Mathematical Olympiads (EGMO) by Evan Chen
All of these links are outside of [AoPSWiki].
- The Introduction to Geometry class is where you can learn introductory geometry.
- The Worldwide Online Olympiad Training Program is designed to help students learn to tackle mathematical Olympiad problems in topics such as geometry.
These are all outside links.
- Viktor Prasolov - Plane Geometry
- Hojoo Lee - Triangle Geometry Formulas