Cervian三角形与面积计算

GeoGebra 命令及参数

1. Polygon(C, A, B) → poly1, b, c, a
2. Segment(A, E) → d
3. Segment(D, B) → e
4. Segment(F, C) → f
5. Intersect(d, e) → G
6. Intersect(d, f) → H
7. Intersect(e, f) → I
8. Polygon(H, I, G) → poly2, g, h, i
9. Polygon(C, E, H) → poly3, h_1, c_1, e_1
10. Polygon(I, B, F) → poly4, f_1, i_1, b_1
11. Polygon(G, D, A) → poly5, a_1, g_1, d_1
12. Polygon(I, B, E, H) → poly6, i_2, b_2, e_2, h_2
13. Polygon(G, H, C, D) → poly7, g_2, h_3, c_2, d_2
14. Polygon(G, A, F, I) → poly8, g_3, a_2, f_2, i_3
15. FractionText(j) → texte1
16. FractionText(k) → texte3
17. FractionText(l) → texte2
18. Midpoint(C, G) → J
19. Midpoint(C, H) → K
20. Centroid(poly1) → L
21. Circle(E, 0.3) → p
22. Circle(M, 0.3) → q
23. Circle(N, 0.3) → r
24. Circle(D, 0.3) → s
25. Circle(O, 0.3) → t
26. Circle(F, 0.3) → k_1
27. Line(A, E) → n
28. Line(B, D) → j_1
29. Line(B, N) → l_1
30. Line(C, O) → m_1
31. Line(C, F) → n_1
32. Line(A, M) → p_1
33. Intersect(p, n) → P, Q
34. Intersect(q, p_1) → R, S
35. Intersect(k_1, n_1) → T, U
36. Intersect(t, m_1) → V, W
37. Intersect(s, j_1) → Z, A_1
38. Intersect(r, l_1) → B_1, C_1
39. Segment(C, U) → q_1
40. Segment(C_1, B) → r_1
41. Segment(A, Q) → s_1
42. Segment(A, S) → t_1
43. Segment(B, A_1) → j_2
44. Segment(C, W) → k_2