High School Geometry Unlocked (2016)
Chapter 1. Translation, Reflection, Rotation
Chapter 2. Congruence and Theorems
Lesson 2.1. Triangle Congruence Postulates
Lesson 2.2. Putting Theorems to the Test
Lesson 2.3. Constructing Lines and Angles
Lesson 2.4. Constructing Polygons
Chapter 3. Similarity
Lesson 3.2. Triangle Similarity
Chapter 4. Trigonometry
Lesson 4.1. Trigonometric Ratios
Lesson 4.2. Complementary Angles
Lesson 4.4. Trigonometry with Non-Right Triangles
Chapter 5. Three-Dimensional Figures
Lesson 5.2. Three-Dimensional Figures
Lesson 5.3. Volume and Surface Area
Chapter 6. Connecting Algebra and Geometry
Lesson 6.1. Algebra and the Coordinate Plane
Lesson 6.2. Distance and Midpoint
Chapter 7. Circles
Chapter 8. Circles: Constructions and Equations