等腰梯形 by Alexander LaBass

GeoGebra 命令及参数

1. Circle(A_1, B) → c
2. Circle(A_1, C) → d
3. Line(A_1, B) → a
4. Line(A_1, C) → b
5. Intersect(c, b, 1) → A
6. Segment(A, B) → e
7. Intersect(d, a, 1) → D
8. Segment(A, D) → f
9. Segment(D, C) → g
10. Segment(C, B) → h
11. Distance(A, B) → distanceAB
12. Distance(B, C) → distanceBC
13. Distance(C, D) → distanceCD
14. Distance(A, D) → distanceAD
15. Angle(D, A, B) → α
16. Angle(A, B, C) → β
17. Angle(B, C, D) → γ
18. Angle(C, D, A) → δ
19. Segment(D, B) → k
20. Segment(A, C) → l
21. Distance(B, D) → distanceBD
22. Distance(A, C) → distanceAC
23. Intersect(k, l) → E
24. Distance(A, E) → distanceAE
25. Distance(B, E) → distanceBE
26. Distance(C, E) → distanceCE
27. Distance(D, E) → distanceDE
28. Segment(A, C) → n
29. Segment(B, D) → p
30. Intersect(n, p) → F
31. Angle(A, F, B) → ε
32. Angle(B, F, C) → ζ
33. Angle(A, D, F) → η
34. Angle(F, D, C) → θ
35. Angle(D, A, F) → ι
36. Angle(F, A, B) → κ
37. Angle(A, B, F) → λ
38. Angle(F, B, C) → μ
39. Angle(B, C, F) → ν
40. Angle(D, C, F) → ξ
41. Midpoint(D, A) → G
42. Midpoint(C, B) → H
43. Segment(G, H) → q