菱形的性质 by Philip Collett

GeoGebra 命令及参数

1. Circle(A, B) → c
2. Point(c) → C
3. Segment(A, C) → a
4. Segment(A, B) → b
5. Line(C, b) → d
6. Line(B, a) → e
7. Intersect(d, e) → D
8. Segment(A, D) → f
9. Segment(C, B) → g
10. Segment(C, D) → h
11. Segment(B, D) → i
12. Intersect(f, g) → E
13. Segment(E, C) → j
14. Segment(E, B) → k
15. Segment(A, E) → l
16. Segment(D, E) → m
17. Angle(B, A, D) → α
18. Angle(D, A, C) → β
19. Angle(g, f) → γ
20. Angle(A, E, B) → δ
21. Angle(C, E, A) → ε
22. Angle(D, E, C) → ζ
23. Angle(B, A, C) → η
24. Angle(C, D, E) → θ
25. Angle(E, D, B) → ι
26. Angle(C, D, B) → κ
27. Angle(A, C, E) → λ
28. Angle(E, C, D) → μ
29. Angle(A, C, D) → ν
30. Angle(E, B, A) → ξ
31. Angle(D, B, E) → ο
32. Angle(D, B, A) → ρ
33. Midpoint(C, D) → F
34. Midpoint(D, B) → G
35. Midpoint(A, B) → H
36. Midpoint(C, A) → I
37. Segment(C, F) → n
38. Segment(A, H) → p
39. Segment(I, C) → q
40. Segment(G, D) → r
41. Corner(1, 1) → Cnr1
42. Corner(1, 2) → Cnr2
43. Corner(1, 3) → Cnr3
44. Corner(1, 4) → Cnr4
45. Polygon(CN1, CN2, CN3, CN4) → Panel, cn1, cn2, cn3, cn4
46. Polygon(Cnr1, Cnr2, Cnr3, Cnr4) → Frame, cnr1, cnr2, cnr3, cnr4