三角形类型演示

GeoGebra 命令及参数

1. Midpoint(A, B) → O
2. Polygon(A, B, C, D) → poly1, a_1, b_1, d_1, c_1
3. Line(C, B) → j
4. Line(D, C) → k
5. Line(A, B) → l
6. Line(D, A) → m
7. Midpoint(D, C) → E
8. Midpoint(A, B) → F
9. Segment(E, F) → t
10. Midpoint(b_1) → K
11. Midpoint(c_1) → L
12. Line(D, B) → c1
13. Segment(C, A) → e1
14. Segment(A, B) → f1
15. Distance(A, B) → cc
16. Distance(A, C) → bb
17. Distance(C, B) → aa
18. Segment(C, B) → a
19. Segment(A, B) → g1
20. Midpoint(d_1) → N
21. Circle(A, 0.6) → c
22. Intersect(c, d_1) → G,
23. Intersect(c, a_1) → H,
24. Line(G, a_1) → b
25. Line(H, d_1) → d
26. Angle(C, A, B) → α
27. Angle(B, C, A) → β
28. Angle(A, B, C) → γ
29. Circle(B, 0.6) → e
30. Intersect(e, a_1) → J,
31. Intersect(e, b_1) → M,
32. Line(J, b_1) → f
33. Line(M, a_1) → n
34. Intersect(n, f) → I
35. Polygon(I, J, B, M) → poly2, i, j_1, b_2, m_1
36. Circle(C, 0.6) → g
37. Intersect(g, d_1) → P,
38. Intersect(g, b_1) → Q,
39. Line(P, b_1) → h
40. Line(Q, d_1) → p
41. Intersect(p, h) → R
42. Polygon(P, R, Q, C) → poly3, p_1, r, q, c_2
43. Circle(A, 0.6) → s
44. Line(G, a_1) → a1
45. Line(H, d_1) → b1
46. Intersect(a1, b1) → S
47. Polygon(A, G, S, H) → poly4, a_2, g_1, s_1, h_1
48. Angle(A, B, C) → δ
49. Angle(B, C, A) → ε
50. Angle(C, A, B) → ζ
51. Angle(B, C, A) → η
52. Angle(A, B, C) → θ
53. Angle(C, A, B) → ι
54. Angle(C, A, B) → κ
55. Angle(A, B, C) → λ
56. Angle(B, C, A) → μ