构造等腰梯形

GeoGebra 命令及参数

1. Element(randomNumbersC, Mod[questionCount, Length[randomNumbersC]] + 1) → sliderCOriginal
2. Element(randomNumbersB, Mod[questionCount, Length[randomNumbersB]] + 1) → sliderBOriginal
3. Element(randomNumbersA, Mod[questionCount, Length[randomNumbersA]] + 1) → sliderAOriginal
4. Shuffle({1, 2, 3, 4}) → bspList, {1, 2, 4, 3}
5. Sequence(Random[1, 10], i, 1, 10) → randomNumbers, {3, 6, 1, 10, 2, 2, 6, 5, 1, 8}
6. Element(randomNumbers, Mod[questionCount, Length[randomNumbers]] + 1) → randomNumber
7. Segment(A, B) → segAB
8. Rotate(B, winkel, A) → B'
9. Ray(A, B') → g
10. Polygon((-6, 8), (8, 8), (8, 12), (-6, 12)) → q1, h, i, j, k
11. Angle(B, A, B') → α
12. Angle(B, A, B') → alph1
13. Circle(A, sideD) → c
14. Point(c) → C
15. Point(c) → D
16. Rotate(A, (-winkel), B) → A'
17. Ray(B, A') → l
18. Angle(A', B, A) → β
19. Circle(B, sideD) → e
20. Point(e) → F
21. Point(e) → G
22. CircleArc(B, F, G) → p
23. Point(e) → S
24. Point(e) → T
25. Circle(A, sideB) → p_1
26. Point(p_1) → U
27. CircleArc(A, U, V) → q_1
28. Circle(B, sideB) → r_1
29. Point(r_1) → W
30. Point(r_1) → Z
31. CircleArc(B, W, Z) → s_1
32. Circle(B, sideD) → t_1
33. Point(t_1) → A_1
34. Point(t_1) → B_1
35. CircleArc(B, A_1, B_1) → c_2
36. Intersect(If[bsp ≟ 1, s_1, If[bsp ≟ 3, c_2]], l) → H,
37. Circle(A, sideD) → d_2
38. Point(d_2) → C_1
39. Point(d_2) → D_1
40. CircleArc(A, C_1, D_1) → e_2
41. Intersect(If[bsp ≟ 3, e_2, If[bsp ≟ 1, q_1]], g) → E,
42. Segment(E, H) → segCD
43. Segment(A, E) → segAD
44. Segment(B, H) → segBC
45. Angle(A, E, H) → γ
46. Angle(E, H, B) → δ
47. Segment(I, J) → segCD2
48. Rotate(I, winkel, J) → I'
49. Polygon((-6, 0.5), (9, 0.5), (9, -3), (-6, -3)) → q2, m, n, q, r
50. Ray(J, I') → s
51. Angle(I, J, I') → ε
52. Rotate(J, (-winkel), I) → J'
53. Ray(I, J') → t
54. Angle(J', I, J) → ζ
55. Circle(I, sideD) → c_1
56. Point(c_1) → K
57. CircleArc(I, K, L) → d_1
58. Circle(I, sideB) → f_2
59. Point(f_2) → G_1
60. Point(f_2) → H_1
61. CircleArc(I, G_1, H_1) → g_2
62. Intersect(If[bsp ≟ 2, d_1, If[bsp ≟ 4, g_2]], t) → M,
63. Segment(I, M) → segAD2
64. Circle(J, sideD) → e_1
65. Point(e_1) → N
66. Point(e_1) → O
67. CircleArc(J, N, O) → f_1
68. Circle(J, sideB) → d
69. Point(d) → E_1
70. Point(d) → F_1
71. CircleArc(J, E_1, F_1) → k_1
72. Intersect(If[bsp ≟ 2, f_1, If[bsp ≟ 4, k_1]], s) → P,
73. Segment(J, P) → segBC2
74. Segment(M, P) → segAB2
75. Angle(P, M, I) → η
76. Angle(J, P, M) → θ
77. Polygon((-6, -4), (-6, 12), (9, 12), (9, -4)) → q3, a, b, g_1, h_1
78. Segment(A - (0, .12), A + (0, 0.12)) → seg1
79. Segment(B - (0, .12), B + (0, 0.12)) → seg2
80. Segment(I - (0, .12), I + (0, 0.12)) → seg3
81. Segment(J - (0, .12), J + (0, 0.12)) → seg4