构造周长比为2:3:4的三角形

GeoGebra 命令及参数

1. Segment(A, B) → a
2. Ray(A, C) → b
3. Point(b) → D
4. Circle(A, D) → c
5. Circle(D, Radius[c]) → d
6. Intersect(d, b) → E, F
7. Circle(F, Radius[d]) → e
8. Intersect(e, b) → G, H
9. Circle(H, Radius[e]) → f
10. Intersect(f, b) → I, J
11. Circle(J, Radius[f]) → g
12. Intersect(g, b) → K, L
13. Circle(L, Radius[g]) → h
14. Intersect(h, b) → M, N
15. Circle(N, Radius[h]) → k
16. Intersect(k, b) → O, P
17. Circle(P, Radius[k]) → p
18. Intersect(p, b) → Q, R
19. Circle(R, Radius[p]) → q
20. Intersect(q, b) → S, T
21. Segment(T, B) → i
22. Line(R, i) → j
23. Line(P, j) → l
24. Line(N, l) → m
25. Line(L, m) → n
26. Line(J, n) → r
27. Line(H, r) → s
28. Line(F, s) → t
29. Line(D, t) → a_1
30. Intersect(a_1, a) → U
31. Segment(D, U) → b_1
32. Intersect(j, a) → V
33. Segment(R, V) → c_1
34. Intersect(l, a) → W
35. Segment(P, W) → d_1
36. Intersect(m, a) → Z
37. Segment(N, Z) → e_1
38. Intersect(n, a) → A_1
39. Segment(L, A_1) → f_1
40. Intersect(r, a) → B_1
41. Segment(J, B_1) → g_1
42. Intersect(s, a) → C_1
43. Segment(H, C_1) → h_1
44. Intersect(t, a) → D_1
45. Segment(F, D_1) → i_1
46. Circle(D_1, A) → k_1
47. Circle(A_1, B) → p_1
48. Intersect(p_1, k_1) → E_1, F_1, ,
49. Segment(D_1, F_1) → j_1
50. Segment(A_1, F_1) → l_1