Geometry Illuminated

Axioms and models; Part I. Neutral Geometry: 1. The axioms of incidence and order; 2. Angles and triangles; 3. Congruence verse I: SAS and ASA; 4. Congruence verse II: AAS; 5. Congruence verse III: SSS; 6. Distance, length and the axioms of continuity; 7. Angle measure; 8. Triangles in neutral geometry; 9. Polygons; 10. Quadrilateral congruence theorems; Part II. Euclidean Geometry: 11. The axiom on parallels; 12. Parallel projection; 13. Similarity; 14. Circles; 15. Circumference; 16. Euclidean constructions; 17. Concurrence I; 18. Concurrence II; 19. Concurrence III; 20. Trilinear coordinates; Part III. Euclidean Transformations: 21. Analytic geometry; 22. Isometries; 23. Reflections; 24. Translations and rotations; 25. Orientation; 26. Glide reflections; 27. Change of coordinates; 28. Dilation; 29. Applications of transformations; 30. Area I; 31. Area II; 32. Barycentric coordinates; 33. Inversion I; 34. Inversion II; 35. Applications of inversion; Part IV. Hyperbolic Geometry: 36. The search for a rectangle; 37. Non-Euclidean parallels; 38. The pseudosphere; 39. Geodesics on the pseudosphere; 40. The upper half-plane; 41. The Poincaré disk; 42. Hyperbolic reflections; 43. Orientation preserving hyperbolic isometries; 44. The six hyperbolic trigonometric functions; 45. Hyperbolic trigonometry; 46. Hyperbolic area; 47. Tiling; Bibliography; Index.