1. Centroid
2. Orthocenter
3. Circumcenter
4. Circumcircle
5. Incenter
6. Incircle
8. Orthocenter, Mid-segment triangle
10. Pedal triangle
11. Center of the nine point circle
14. Equilateral triangle, given a side
17. Triangle Centers (H, G, C, and I)
18. Triangle Centers with Euler Line
19. Divide a segment into two parts that form a golden ratio
24. Parabola, given directrix and focus