Pappus 定理面积-2

GeoGebra 命令及参数

1. Polygon(A, B, 8) → poly1, f, D, E, F, G, H, g, h, i, j, k, l, m, C
2. Centroid(poly1) → I
3. Segment(B, I) → n
4. Segment(A, I) → p
5. Segment(H, I) → q
6. Segment(G, I) → r
7. Segment(F, I) → s
8. Segment(E, I) → t
9. Segment(D, I) → a
10. Segment(C, I) → b
11. Intersect(n, poly1) → L
12. Point(n) → J
13. Segment(B, A) → c
14. Line(J, f) → d
15. Intersect(d, p) → K
16. Intersect(d, p) → M
17. Polygon(M, J, 8) → poly2, e, O, P, Q, R, S, f_1, g_1, h_1, i_1, j_1, k_1, l_1, N
18. Midpoint(B, J) → T
19. Line(T, d) → m_1
20. Intersect(m_1, p) → U
21. Segment(U, T) → n_1
22. Polygon(U, T, 8) → poly3, p_1, W, Z, A_1, B_1, C_1, q_1, r_1, s_1, t_1, a_1, b_1, c_1, V
23. Segment(B, J) → e_1
24. OrthogonalLine(I, g) → d_1
25. Intersect(d_1, g) → D_1
26. Intersect(d_1, f_1) → E_1
27. Segment(D_1, E_1) → f_2
28. Perimeter(poly3) → perimeterpoly3
29. PointIn(poly3) → Pointpoly3_{1}
30. PointIn(poly3) → Pointpoly3_{2}
31. Perimeter(poly3) → u
32. PointIn(poly3) → Pointpoly3_{3}
33. Perimeter(poly1) → perimeterpoly1
34. PointIn(poly1) → Pointpoly1_{1}
35. Perimeter(poly1) → v
36. PointIn(poly1) → Pointpoly1_{2}
37. Perimeter(poly2) → perimeterpoly2
38. PointIn(poly2) → Pointpoly2_{1}
39. Intersect(q_1, f_2) → F_1
40. PointIn(poly1) → Pointpoly1
41. PointIn(poly3) → Pointpoly3
42. PointIn(poly2) → Pointpoly2