金字塔的展开图

GeoGebra 命令及参数

1. Point(Circle[A, l]) → B
2. Segment(A, B) → a
3. Line(A, B) → b_2
4. Circle(B, (3 * l / 4.5)) → c
5. Intersect(c, b_2, 2) → C
6. Rotate(C, 30°, B) → C'
7. Line(C', b_2) → d
8. Segment(B, C') → e
9. Line(A, e) → f
10. Intersect(d, f) → D
11. Polygon(A, B, C', D) → poly1, a_1, b_1, c', d_1
12. Segment(A, C') → g
13. Segment(D, B) → h_1
14. Intersect(g, h_1) → E
15. OrthogonalLine(E, a_1) → i
16. Circle(E, h) → k
17. Intersect(k, i, 2) → F
18. Segment(B, F) → j
19. Segment(C', F) → l_5
20. Segment(F, D) → m
21. Segment(F, A) → n
22. Segment(A, D) → q
23. Midpoint(b_1) → G
24. Segment(G, F) → r
25. Line(E, G) → c_1
26. Circle(G, F) → f_1
27. Intersect(f_1, c_1, 2) → H
28. Intersect(c_1, d_1) → I
29. Circle(I, F) → g_1
30. Intersect(g_1, c_1, 1) → J
31. Vector(F, J) → u
32. Point(c') → L
33. Circle(L, F) → q_1
34. Vector(F, H) → w
35. Midpoint(A, B) → K
36. Line(K, E) → e_1
37. Circle(K, h) → p_1
38. Intersect(e_1, c') → M
39. Circle(M, h) → r_1
40. Intersect(r_1, e_1, 2) → N
41. Intersect(p_1, e_1, 1) → O
42. Vector(F, N) → v
43. Vector(F, O) → z
44. Translate(F, Vector[(z * o)]) → F'_1
45. Translate(F, Vector[(u * (o - 1))]) → F'_2
46. Translate(F, Vector[(v * (o - 2))]) → F'_3
47. Translate(F, Vector[(w * (o - 3))]) → F'
48. Segment(F, N) → s
49. LineBisector(s) → a_2
50. Intersect(a_2, c') → P
51. CircleArc(P, N, F) → c_2
52. Ray(P, F'_3) → d_2
53. Intersect(c_2, d_2, 1) → Q
54. Segment(F, O) → e_2
55. LineBisector(e_2) → f_2
56. Intersect(f_2, a_1) → R
57. CircleArc(R, F, O) → g_2
58. Ray(R, F'_1) → h_2
59. Intersect(g_2, h_2, 1) → S
60. CircleArc(I, F, J) → k_2
61. CircleArc(G, H, F) → p_2
62. Ray(I, F'_2) → i_2
63. Intersect(k_2, i_2, 1) → T
64. Ray(G, F') → j_2
65. Intersect(p_2, j_2, 1) → U
66. Circle(I, E) → s_1
67. OrthogonalLine(I, a_1) → i_1
68. Intersect(s_1, i_1, 2) → V
69. Intersect(s_1, i_1, 1) → W
70. OrthogonalLine(V, i_1) → j_1
71. OrthogonalLine(W, i_1) → k_1
72. OrthogonalLine(G, k_1) → l_1
73. Intersect(j_1, l_1) → Z
74. Intersect(k_1, l_1) → A_1
75. Midpoint(V, Z) → B_1
76. Midpoint(A_1, W) → C_1
77. Circle(B_1, r) → t_1
78. Circle(C_1, r) → q_2
79. OrthogonalLine(B_1, k_1) → m_1
80. Intersect(t_1, m_1, 1) → D_1
81. Intersect(q_2, m_1, 2) → E_1
82. Vector(C', Z) → u_1
83. Vector(B, A_1) → v_1
84. Vector(N, D_1) → w_1
85. Vector(O, E_1) → z_1
86. Translate(N, Vector[(w_1 * (o - 4))]) → N'
87. Translate(O, Vector[(z_1 * (o - 4))]) → O'
88. Translate(B, Vector[(v_1 * (o - 4))]) → B'
89. Translate(A, Vector[(v_1 * (o - 4))]) → A'
90. Translate(C', Vector[(u_1 * (o - 4))]) → C''
91. Translate(D, Vector[(u_1 * (o - 4))]) → D'
92. If(o < 1, S, If[o < 4, O, If[o < 5, O', E_1]]) → F_1
93. If(o < 1, F, If[o < 2, T, J]) → G_1
94. If(o < 3, F, If[o < 4, U, H]) → H_1
95. If(o < 2, F, If[o < 3, Q, If[o < 4, N, If[o < 5, N', D_1]]]) → I_1
96. If(o < 4, A, If[o < 5, A', W]) → J_1
97. If(o < 4, B, If[o < 5, B', A_1]) → K_1
98. If(o < 4, C', If[o < 5, C'', Z]) → L_1
99. If(o < 4, D, If[o < 5, D', V]) → M_1
100. Polygon(F_1, J_1, K_1) → poly2, k_3, f_3, j_3
101. Polygon(L_1, H_1, K_1) → poly3, k_4, l_2, h_3
102. Polygon(L_1, I_1, M_1) → poly4, m_2, l_3, i_3
103. Polygon(M_1, G_1, J_1) → poly5, j_4, m_3, g_3
104. Intersect(m, j_3) → N_1
105. Segment(I_1, N_1) → n_1
106. Intersect(j_3, i_3) → O_1
107. Intersect(c', i_3) → Q_1
108. Intersect(c', i_3) → R_1
109. Intersect(c', i_3) → S_1
110. Intersect(c', i_3) → U_1
111. Intersect(c', i_3) → A_2
112. Intersect(l_2, i_3) → B_2
113. Segment(B_2, O_1) → n_2
114. Segment(B_2, M_1) → r_2
115. Midpoint(M_1, L_1) → C_2
116. Midpoint(L_1, K_1) → D_2
117. Midpoint(K_1, J_1) → E_2
118. Midpoint(J_1, M_1) → F_2
119. Polygon(J_1, M_1, L_1, K_1) → poly6, j_5, m_4, l_4, k_5
120. Intersect(j_3, d_1) → P_1
121. Segment(P_1, M_1) → c_3
122. Midpoint(r) → T_1
123. Point(a_2) → G_2