The following topics provide a good study of intermediate geometry.
- 3D Geometry
- Angle bisector theorem
- Mass Point Geometry
- Menelaus' Theorem
- Ptolemy's Theorem
- Cyclic quadrilaterals
- Stewart's Theorem
- Ceva's Theorem
- Challenging Problems in Geometry -- A good book for students who already have a solid handle on elementary geometry.
- Geometry Revisited -- A classic.
See math books for more texts.
- Intermediate Geometry -- A book on Intermediate Geometry that is indefinitely postponed.
- The Worldwide Online Olympiad Training (WOOT) Program -- Intermediate to Olympiad training in a variety of subjects, including geometry.
- Many summer programs have Intermediate Geometry classes.