1. Centroid 
2. Orthocenter 
3. Circumcenter 
4. Circumcircle 
5. Incenter 
6. Incircle 
7a. Medial Triangle 
7b.Orthocenter, Midsegment triangle 
8. Orthic triangle 
9.Pedal triangle 
10. Center of Nine Points 
11. Nine Point Circle 
12. Trisecting a line segment 
13. Equilateral triangle, given side 
14. Square, given a side 
15. Isosceles triangle, given base and
altitude 
16. Triangle centers (H, G, C, and
I) 
17. Triangle centers with Euler Line 
18. Locus of vertex of a fixed angle that subtends
a segment 
19. Divide a segment AB into two parts that
form a golden ratio 
20. Pentagon, given a radius 
21.Pentagon, given a side 
22. Hexagon, given a side 
23. Octagon , given a side 
24. Euler Line 


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