1. When Three Lines Meet!

2. Three sides, Three Personalities

3. Can This Triangle Exist?

4. Angles Make the Difference

5. 180° - The Magic Rule!

6. Exterior Equals the Sum!

7. Design by Sides

8. Designing with angles

9. Triangle Tales Revisited!

10. PT3 Revision I - A Tale of three intersecting lines

11. PT3 Revision II - A Tale of three intersecting lines

12. Annual Revision I - A Tale of three intersecting lines