面积单位换算的几何可视化

GeoGebra 命令及参数

1. Segment(A, B) → a
2. Segment(B, C) → b
3. Segment(C, D) → c
4. Segment(D, A) → d
5. Vector(G, E) → u
6. Vector(H, F) → v
7. Vector(J, K) → w
8. Vector(I, L) → z
9. Segment(O, M) → e
10. Segment(O_1, M_1) → e_1
11. Segment(O_2, M_2) → e_2
12. Segment(O_3, M_3) → e_3
13. Segment(O_4, M_4) → e_4
14. Segment(O_5, M_5) → e_5
15. Segment(O_6, M_6) → e_6
16. Segment(O_7, M_7) → e_7
17. Segment(O_8, M_8) → e_8
18. Point(b) → P
19. Segment(N, P) → f
20. Segment(B_1, C_1) → b_1
21. Point(b_1) → P_1
22. Segment(N_1, P_1) → f_1
23. Segment(B_3, C_3) → b_3
24. Point(b_3) → P_3
25. Segment(N_3, P_3) → f_3
26. Segment(B_4, C_4) → b_4
27. Point(b_4) → P_4
28. Segment(N_4, P_4) → f_4
29. Segment(B_5, C_5) → b_5
30. Point(b_5) → P_5
31. Segment(N_5, P_5) → f_5
32. Segment(B_6, C_6) → b_6
33. Point(b_6) → P_6
34. Segment(N_6, P_6) → f_6
35. Segment(B_7, C_7) → b_7
36. Point(b_7) → P_7
37. Segment(N_7, P_7) → f_7
38. Segment(B_8, C_8) → b_8
39. Point(b_8) → P_8
40. Segment(N_8, P_8) → f_8
41. Segment(B_2, C_9) → b_2
42. Point(b_2) → P_2
43. Segment(N_9, P_2) → f_2
44. Intersect(c, d) → Q
45. Intersect(d, f) → R
46. Intersect(e, f) → S
47. Intersect(c, e) → T
48. Polygon(Q, R, S, T) → poly1, q, r, s, t
49. Vector(U, V) → g
50. Intersect(c, d) → Z
51. Polygon(Z, X, W, Y) → poly2, z_1, A_1, w_1, D_1