Inscribed Triangles
- Altitude Triangle
- Auxiliary Triangle
- Cevian Triangle
- Contact Triangle
- Cyclocevian Triangle
- Extouch Triangle
- First Yff Triangle
- Incentral Triangle
- Inscribed Triangle
- Intouch Triangle
- Lemoine Triangle
- MacBeath Triangle
- Medial Triangle
- Miquel Triangle
- Orthic Triangle
- Pedal Triangle
- Second Yff Triangle
- Sine-Triple-Angle Circle
- Soddy Triangles
- Steiner Triangle
- Symmedial Triangle
- Yff Contact Triangle