菱形、梯形与正方形的几何构造与度量关系

GeoGebra 命令及参数

1. Circle(B, C) → d
2. Circle(C, B) → c
3. Intersect(d, c, 2) → A
4. Intersect(d, c, 1) → D
5. Segment(C, A) → a
6. Segment(A, B) → b
7. Segment(B, D) → e
8. Segment(D, C) → f
9. Angle(A, B, D) → α
10. Angle(D, C, A) → β
11. Angle(C, A, B) → γ
12. Angle(B, D, C) → δ
13. Circle(E, F) → g
14. Segment(E, F) → h
15. OrthogonalLine(E, h) → i
16. Intersect(g, i, 1) → G
17. OrthogonalLine(G, i) → j
18. OrthogonalLine(F, j) → k
19. Intersect(j, k) → H
20. Distance(i, h) → l
21. Distance(j, k) → m
22. Angle(G, E, F) → ε
23. Angle(E, F, H) → ζ
24. Angle(H, G, E) → η
25. Angle(E, F, H) → θ
26. Angle(F, H, G) → ι
27. Distance(G, H) → distanceGH
28. Distance(H, F) → distanceHF
29. Distance(E, G) → distanceEG
30. Distance(E, F) → distanceEF
31. Circle(I, J) → p
32. Point(p) → K
33. Segment(I, K) → n
34. Segment(I, J) → q
35. Segment(K, J) → r
36. Point(q) → L
37. Line(L, r) → s
38. Intersect(s, n) → M
39. Slope(s) → m_1
40. Slope(r) → m_2
41. Slope(n) → m_3
42. Slope(q) → m_4