菱形的性质探究 by Rosalie83 (2)

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → D
2. Line(D, A) → a
3. Segment(D, A) → b
4. Line(D, C_1) → c
5. Mirror(yAxis, b) → yAxis'
6. Segment(D, A) → d
7. Mirror(D, c) → A'
8. Mirror(A, c) → C
9. Segment(A', C) → d'
10. Line(C, A) → e
11. Polygon(A, D, C) → poly1, b', b_1, a_1
12. Mirror(A, a_1) → B'_1
13. Mirror(D, a_1) → B
14. Mirror(C, a_1) → B''
15. Polygon(B'_1, B, B'') → poly1', b'', b'_1, a'_1
16. Polygon(D, A, C_1, C) → poly2, a_2, b_2, c_1, b'_2
17. Polygon(A, D, C, B) → poly3, b_3, a_3, b'_3, a'_2
18. Polygon(D, A, B, C) → poly4, a_4, b_4, a'_3, b'_4
19. Angle(C, D, A) → α
20. Angle(D, A, B) → β
21. Angle(A, B, C) → γ
22. Angle(B, C, D) → δ
23. Segment(D, B) → h
24. Segment(A, C) → i
25. Intersect(h, i) → D_1
26. Segment(D, D_1) → k
27. Segment(D_1, B) → l
28. Segment(D_1, A) → m
29. Segment(D_1, C) → n
30. Angle(D_1, D, A) → ε
31. Angle(D, A, D_1) → ζ
32. Angle(D_1, A, B) → η
33. Angle(A, B, D_1) → θ
34. Angle(D_1, B, C) → ι
35. Angle(B, C, D_1) → κ
36. Angle(D_1, C, D) → λ
37. Angle(C, D, D_1) → μ
38. Angle(A, D_1, D) → ν
39. Angle(D, D_1, C) → ξ
40. Angle(C, D_1, B) → ο
41. Angle(B, D_1, A) → ρ
42. Polygon(A, B, C, D) → poly5, a_5, b_5, c_2, d_1
43. Segment(A, C) → p
44. Segment(D, B) → s
45. Segment(A, C) → r
46. Segment(D, B) → e_1