三角形的特殊点与线 by Ricardo García Mesa

GeoGebra 命令及参数

1. Polygon(A, B, C) → polígono1, c, a, b
2. Midpoint(c) → D
3. Midpoint(b) → E
4. Midpoint(a) → F
5. Segment(D, C) → d
6. Segment(E, B) → e
7. Segment(F, A) → f
8. Intersect(d, e) → G
9. AngularBisector(a, b) → j, k
10. AngularBisector(a, c) → l, m
11. AngularBisector(c, a) → n, p
12. AngularBisector(b, c) → q, r
13. Intersect(k, p) → H
14. OrthogonalLine(B, b) → t
15. OrthogonalLine(A, a) → a_1
16. OrthogonalLine(C, c) → b_1
17. Intersect(t, a_1) → I
18. OrthogonalLine(D, c) → c_1
19. OrthogonalLine(E, b) → d_1
20. OrthogonalLine(F, a) → e_1
21. Intersect(c_1, d_1) → J
22. Circle(J, A) → f_1
23. OrthogonalLine(H, c) → h_1
24. Intersect(h_1, c) → K
25. Circle(H, K) → k_1
26. Line(I, J) → j_1
27. Polygon(L, M, N, O) → polígono2, l_2, m_1, n_1, o_1
28. Polygon(P, Q, R, S) → polígono3, p_1, q_1, r_1, s_1