拿破仑等边三角形

GeoGebra 命令及参数

1. Polygon(A, B, C) → poly1, c, a, b
2. Circle(A, C) → d
3. Circle(C, A) → e
4. Intersect(d, e, 1) → D
5. Intersect(d, e, 2) → E
6. Circle(B, C) → f
7. Circle(C, B) → g
8. Intersect(f, g, 1) → F
9. Intersect(f, g, 2) → G
10. Polygon(C, A, D) → poly2, d_1, c_1, a_1
11. Polygon(B, C, G) → poly3, g_1, b_1, c_2
12. Polygon(A, C, E) → poly4, e_1, a_2, c_3
13. Polygon(B, C, F) → poly5, f_1, b_2, c_4
14. Circle(B, A) → h
15. Circle(A, B) → k
16. Intersect(h, k, 1) → H
17. Intersect(h, k, 2) → I
18. Polygon(A, B, H) → poly6, h_1, a_3, b_3
19. Polygon(A, B, I) → poly7, i, a_4, b_4
20. LineBisector(c) → j
21. LineBisector(a_3) → l
22. LineBisector(b_3) → m
23. Intersect(j, l) → J
24. LineBisector(b_4) → n
25. LineBisector(a_4) → p
26. Intersect(j, n) → K
27. LineBisector(b) → q
28. LineBisector(c_1) → r
29. LineBisector(a_1) → s
30. Intersect(q, r) → L
31. LineBisector(c_3) → t
32. LineBisector(a_2) → i_1
33. Intersect(q, t) → M
34. LineBisector(a) → j_1
35. LineBisector(c_2) → k_1
36. LineBisector(b_1) → l_1
37. Intersect(j_1, k_1) → N
38. LineBisector(c_4) → m_1
39. LineBisector(b_2) → n_1
40. Intersect(j_1, m_1) → O
41. Polygon(J, L, N) → poly8, n_2, j_2, l_2
42. Polygon(O, M, K) → poly9, k_2, o, m_2