平行线相关角 by Rosalie83

GeoGebra 命令及参数

1. Segment(A, B) → a
2. Line(C, a) → b
3. Point(b) → D
4. Segment(C, D) → c
5. Point(a) → E
6. Point(c) → F
7. Line(F, E) → d
8. Point(d) → G
9. Point(d) → H
10. Segment(G, H) → e
11. Angle(F, E, B) → α
12. Angle(E, F, C) → β
13. Angle(A, E, F) → γ
14. Angle(D, F, E) → δ
15. Angle(B, E, G) → ε
16. Angle(D, F, E) → ζ
17. Angle(G, E, A) → η
18. Angle(E, F, C) → θ
19. Angle(A, E, F) → ι
20. Angle(C, F, H) → κ
21. Angle(F, E, B) → λ
22. Angle(H, F, D) → μ
23. Segment(H, G) → n
24. Angle(B, E, F) → ν
25. Angle(E, F, D) → ξ
26. Angle(A, E, F) → ο
27. Angle(E, F, C) → ρ