五边形与相关角

GeoGebra 命令及参数

1. Rotate(B, (-ε), C) → D
2. Rotate(A, ((-ε)) / 2, D) → A'
3. Ray(D, A') → b
4. Rotate(D, ε / 2, A) → D'
5. Ray(A, D') → q
6. Circle(C, B) → c
7. Segment(C, B) → g
8. OrthogonalLine(C, g) → j
9. Segment(A, B) → f
10. Midpoint(A, B) → H
11. Segment(D, C) → h
12. LineBisector(D, A) → i
13. Semicircle(A, D) → d
14. Intersect(b, q) → E
15. Segment(E, D) → k
16. Segment(E, A) → l
17. Segment(A, H) → m
18. Segment(H, B) → n
19. Angle(A, E, D) → α
20. Angle(D, C, B) → β
21. Circle(E, D, A) → e
22. Circle(D, C, B) → p
23. Intersect(e, p, 2) → K
24. Angle(C, K, E) → γ
25. Segment(K, C) → r
26. Segment(K, E) → s
27. Circle(E, C, K) → t
28. LineBisector(A, D) → a_1
29. LineBisector(D, B) → b_1
30. Intersect(b_1, s) → F
31. Intersect(a_1, r) → G
32. Rotate(E, β, C) → E'
33. Segment(E, H) → f_1
34. Segment(H, E') → g_1
35. Segment(C, E) → h_1
36. Segment(C, E') → i_1
37. Segment(C, H) → j_1
38. Segment(D, B) → l_1
39. Segment(D, A) → m_1
40. Angle(C, H, E) → δ
41. Segment(D, K) → k_1