Geometric Similarity
- Coincident
- Complement
- Congruent
- Daisy
- Directly Similar
- Douglas-Neumann Theorem
- Exsimilicenter
- External Center of Similitude
- External Similitude Center
- Fundamental Theorem of Directly Similar Figures
- Geometric Congruence
- Geometric Contraction
- Homeomorphism
- Homologous Points
- Homothecy
- Homothetic
- Homothetic Center
- Homothetic Position
- Homothetic Triangles
- Inferior Point
- Insimilicenter
- Internal Center of Similitude
- Internal Similitude Center
- Inversely Similar
- Medial Image
- Petersen-Schoute Theorem
- Ratio of Magnification
- Scaling
- Self-Similarity
- Similar
- Similarity
- Similarity Point
- Similitude Center
- Similitude Circle
- Similitude Ratio
- Spiral Similarity
- Subordinate Point
- Tangency Theorem