平行四边形、正方形、矩形、菱形

GeoGebra 命令及参数

1. Segment(A, B) → f
2. Segment(A, C) → g
3. Line(C, f) → h
4. Line(B, g) → i
5. Intersect(h, i) → D
6. Polygon(C, A, B, D) → q1, c, a, b, d
7. Distance(g, d) → e
8. Angle(C, D, B) → α
9. Angle(C, A, B) → β
10. Angle(D, C, A) → γ
11. Angle(D, B, A) → δ
12. Segment(B, C) → j
13. Segment(A, D) → k
14. Intersect(j, k) → E
15. Distance(B, E) → distanceBE
16. Distance(A, E) → distanceAE
17. Distance(D, E) → distanceDE
18. Distance(C, E) → distanceCE
19. Segment(F, G) → l
20. Circle(F, G) → p
21. Point(p) → H
22. Segment(F, H) → m
23. Line(H, l) → n
24. Line(G, m) → q
25. Intersect(n, q) → I
26. Segment(H, I) → r
27. Segment(G, I) → s
28. Polygon(I, G, F, H) → q2, i_1, g_1, f_1, h_1
29. Angle(G, F, H) → ε
30. Angle(H, I, G) → ζ
31. Angle(F, H, I) → η
32. Angle(F, G, I) → θ
33. Segment(J, K) → t
34. OrthogonalLine(J, t) → j_1
35. OrthogonalLine(K, t) → k_1
36. Circle(J, K) → c_1
37. Intersect(c_1, j_1, 2) → L
38. OrthogonalLine(L, j_1) → l_1
39. Intersect(k_1, l_1) → M
40. Segment(J, L) → m_1
41. Segment(L, M) → n_1
42. Segment(K, M) → p_1
43. Polygon(J, L, M, K) → q3, j_2, l_2, m_2, k_2
44. Distance(H, I) → distanceHI
45. Distance(G, I) → distanceGI
46. Distance(F, G) → distanceFG
47. Distance(H, F) → distanceHF
48. Angle(J, L, M) → ι
49. Angle(J, K, M) → κ
50. Angle(L, J, K) → λ
51. Angle(K, M, L) → μ
52. Distance(m_1, p_1) → o
53. Distance(J, K) → distanceJK
54. Distance(K, M) → distanceKM
55. Distance(M, L) → distanceML
56. Distance(L, J) → distanceLJ
57. Segment(N, O) → q_1
58. OrthogonalLine(N, q_1) → r_1
59. OrthogonalLine(O, q_1) → s_1
60. Point(s_1) → P
61. Line(P, q_1) → t_1
62. Intersect(r_1, t_1) → Q
63. Segment(N, Q) → a_1
64. Segment(Q, P) → b_1
65. Segment(P, O) → d_1
66. Angle(N, Q, P) → ν
67. Angle(Q, N, O) → ξ
68. Angle(O, P, Q) → ο
69. Angle(N, O, P) → ρ
70. Distance(Q, N) → distanceQN
71. Midpoint(Q, N) →
72. Distance(O, P) → distanceOP
73. Midpoint(O, P) →
74. Distance(N, O) → distanceNO
75. Midpoint(N, O) →
76. Distance(Q, P) → distanceQP
77. Midpoint(Q, P) →
78. Polygon(N, Q, P, O) → q4, n_2, q_2, p_2, o_1