等腰梯形性质演示

GeoGebra 命令及参数

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