圆中弦的性质3

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → A
2. Circle(A, B) → c
3. Point(c) → C
4. Segment(B, C) → a
5. Point(c) → D_1
6. Distance(B, C) → distanceBC
7. Circle(D_1, a) → d
8. Intersect(c, d, 1) → E
9. Segment(D_1, E) → b
10. Segment(D_1, A) → e
11. Segment(A, C) → f
12. Segment(A, B) → g
13. Segment(A, E) → h
14. Angle(D_1, A, E) → α
15. Angle(B, A, C) → β
16. Distance(D_1, E) → distanceDE
17. Distance(C, B) → distanceCB
18. LineBisector(C, B) → i
19. LineBisector(D_1, E) → j
20. Intersect(i, a) → D
21. Intersect(j, b) → G
22. Angle(A, G, E) → γ
23. Angle(B, D, A) → δ
24. Distance(B, D) → distanceBF
25. Distance(C, D) → distanceCF
26. Distance(D_1, G) → distanceDG
27. Distance(E, G) → distanceEG
28. Distance(A, D) → distanceAF
29. Distance(A, G) → distanceAG
30. Segment(A, D) → k
31. Segment(A, G) → l