复合体几何探究 (邮箱？背包？)

GeoGebra 命令及参数

1. Segment(B, A) → f
2. Ray(A, C) → g
3. Point(g) → E
4. Line(E, D) → h
5. OrthogonalLine(B, h, space) → i
6. Intersect(i, h) → F
7. Segment(B, F) → j
8. Segment(F, E) → k
9. Ray(A, G) → l
10. Point(l) → H
11. Vector(A, H) → u
12. Translate(E, u) → E'
13. Translate(F, u) → F'
14. Translate(B, u) → B'
15. Midpoint(B', H) → I
16. Midpoint(F', E') → J
17. Ray((0, 0, 0), (0, 0, 1)) → m
18. Sphere(I, H) → a
19. Intersect(m, a) → K, L
20. Ray(D, J) → n
21. Sphere(J, E') → b
22. Intersect(n, b) → M, N
23. Segment(B', B) → p
24. Segment(B', F') → q
25. Segment(F', F) → s
26. Segment(E, E') → t
27. Segment(E', F') → c
28. Segment(A, H) → d
29. Segment(H, E') → e
30. Segment(H, B') → f_1
31. CircleArc(I, H, L) → c_1
32. Intersect(m, c_1, 1) → O
33. CircleArc(I, O, B') → d_1
34. CircleArc(J, E', N) → e_1
35. Point(e_1) → P
36. CircleArc(J, P, F') → g_1
37. Surface(x(I) + (r * cos(u)), y(I) + v, z(I) + (r * sin(u)), u, 0, π, v, y(I), y(J)) → o
38. CircleSector(I, H, O) → h_1
39. CircleSector(I, O, B') → k_1
40. Polygon(B, A, H, B') → poly1, b_1, a_1, h_2, b'
41. Polygon(A, E, E', H) → poly2, a_2, e_2, e', h_3
42. CircleSector(J, N, E') → q_1
43. CircleSector(J, F', N) → p_1
44. Polygon(E, F, F', E') → poly3, e_3, f_2, f', e'_1
45. Polygon(B, B', F', F) → poly4, b_2, b'_1, f'_1, f_3
46. Segment(A, E) → i_1
47. Segment(A, E) → j_1