角平分线轨迹的几何作图

GeoGebra 命令及参数

1. Line(A, B) → a_1
2. Line(C, D) → b_1
3. AngularBisector(a_1, b_1) → c, d
4. Intersect(a_1, b_1) → E
5. Point(d) → F_1
6. Angle(F_1, E, A) → α
7. Angle(D, E, F_1) → β
8. Point(d) → G_1
9. OrthogonalLine(G_1, a_1) → e
10. OrthogonalLine(G_1, b_1) → f
11. Intersect(e, a_1) → H_1
12. Intersect(f, b_1) → I
13. Segment(G_1, I) → a_2
14. Segment(H_1, G_1) → b_2
15. Distance(a_2, b_2) → i
16. OrthogonalLine(F, b_1) → g
17. OrthogonalLine(F, a_1) → h
18. Intersect(g, b_1) → G
19. Intersect(h, a_1) → H
20. Segment(H, F) → a
21. Segment(F, G) → b
22. Distance(F, H) → distanceFH
23. Distance(G, F) → distanceGF
24. Angle(B, H, F) → γ
25. Angle(D, G, F) → δ
26. Intersect(c, b_1) → J
27. Point(c) → K
28. Angle(K, J, G) → ε
29. Angle(B, J, K) → ζ
30. Point(c) → L
31. Angle(L, J, D) → η