截断金字塔的几何构造与性质

GeoGebra 命令及参数

1. Intersect(xAxis, yAxis) → O
2. Circle(O, R) → c
3. Intersect(c, xAxis, 1) → A
4. Circle(A, a_1) → d
5. Intersect(d, c) → Q, B, ,
6. Polygon(A, B, n) → poly1, a, l, m, p, q, r, s, t, C, D, E, b, F, G, I, J, K, L, M, N, P, T, e, T_2, f, g, h, i, j, k
7. Pyramid(poly1, S) → o, faceABS, face5, face6, face7, face8, face9, face10, edgeAS, edgeBS, edgeCS, edgeDS, faceBCS, edgeES, edge1, edge2, edge3, edge4, edge5, edge6, edge7, edge8, edge9, faceCDS, edge10, faceDES, faceAES, face1, face2, face3, face4
8. Plane(W, V, U) → u
9. IntersectPath(u, o) → poly2, Z, J_1, K_1, L_1, M_1, N_1, O_1, b_1, c_1, d_1, e_1, A_1, f_1, l_1, m_1, n_1, p_1, q_1, r_1, s_1, t_1, d_2, B_1, e_2, C_1, D_1, E_1, F_1, G_1, I_1
10. Segment(C_1, D) → g_1
11. Segment(D_1, E) → h_1
12. Segment(Z, A) → i_1
13. Segment(A_1, B) → j_1
14. Segment(B_1, C) → k_1
15. Segment(E_1, F) → a_2
16. Segment(G_1, I) → b_2
17. Segment(G, F_1) → c_2
18. Segment(K, J_1) → f_2
19. Segment(L, K_1) → g_2
20. Segment(M, L_1) → h_2
21. Segment(N, M_1) → i_2
22. Segment(P, N_1) → j_2
23. Segment(T, O_1) → k_2
24. Segment(J, I_1) → l_2
25. Polygon(A, B, L, M, N, P, T, C, D, E, F, G, I, J, K) → poly3, a_3, k_3, l_3, m_2, n_2, p_2, s_2, b_3, c_3, d_3, e_3, f_3, g_3, i_3, j_3
26. Polygon(A, B, n) → poly4, q_2, s_3, t_3, a_4, b_4, c_4, d_4, P_1, Q_1, R_1, T_1, r_2, U_1, V_1, W_1, Z_1, A_2, B_2, C_2, D_2, E_2, t_2, h_3, m_3, n_3, p_3, q_3, r_3
27. Distance(M_1, N_1) → w
28. Distance(A_1, B_1) → o_1