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三角形构造 by Taylor Rish

三角形构造 by Taylor Rish
几何画板及绘图内容加载中，请稍等……
2016-10-18 19:47
测试改名0向量几何作图
这个范例演示了如何使用GeoGebra构造三角形。核心数学概念包括三角形的性质和几何作图。使用了Segment, Point, Intersect, Rotate, Angle, Circle等命令。适合初中及以上学生学习几何作图。

GeoGebra 命令及参数

  1. Segment(A, B) → f
  2. Segment(A, C) → g
  3. Segment(B, C) → h
  4. Segment(D, F) → i
  5. Segment(F, E) → j
  6. Segment(E, D) → k
  7. Segment(G, H) → l
  8. Point(l) → I
  9. Point(l) → L
  10. Segment(G, N) → m
  11. Segment(H, O) → n
  12. Intersect(m, n) → P
  13. Rotate(K, 90°, P) → K'
  14. Angle(K, P, K') → α
  15. Rotate(I, 30°, G) → I'
  16. Angle(I, G, I') → β
  17. Rotate(K', 60°, H) → K''
  18. Angle(K', H, K'') → γ
  19. Segment(M, Q) → p
  20. Segment(R, S) → q
  21. Segment(T, U) → r
  22. Segment(Z, W) → s
  23. Segment(W, V) → t
  24. Segment(Z, V) → a
  25. Segment(A_1, B_1) → b
  26. Segment(B_1, C_1) → c
  27. Segment(D_1, E_1) → d
  28. Segment(F_1, G_1) → e
  29. Segment(G_1, H_1) → f_1
  30. Segment(I_1, J_1) → g_1
  31. Point(b) → K_1
  32. Segment(I_1, N_1) → i_1
  33. Point(f_1) → L_1
  34. Circle(G_1, Segment[G_1, L_1]) → d_1
  35. Intersect(d_1, e, 1) → M_1
  36. Segment(J_1, Q_1) → h_1
  37. Segment(O_1, P_1) → j_1
  38. Segment(P_1, R_1) → k_1
  39. Segment(S_1, T_1) → l_1
  40. Segment(T_1, U_1) → m_1
  41. Segment(V_1, W_1) → n_1
  42. Point(j_1) → B_2
  43. Segment(C_2, A_2) → p_1
  44. Circle(P_1, Segment[B_2, P_1]) → q_1
  45. Intersect(q_1, k_1, 1) → D_2
  46. Segment(Z_1, F_2) → s_1
  47. Point(l_1) → E_2
  48. Circle(T_1, Segment[E_2, T_1]) → e_1
  49. Intersect(e_1, m_1, 1) → G_2
  50. Segment(Z_1, I_2) → t_1
  51. Point(t_1) → H_2
  52. Segment(A_2, L_2) → a_1
  53. Segment(J_2, K_2) → r_1
  54. Segment(M_2, N_2) → b_1
  55. Segment(O_2, P_2) → c_1
  56. Segment(P_2, Q_2) → f_2
  57. Segment(R_2, S_2) → g_2
  58. Point(c_1) → U_2
  59. Circle(P_2, Segment[P_2, U_2]) → e_2
  60. Intersect(e_2, f_2, 1) → V_2
  61. Segment(R_2, Z_2) → i_2
  62. Segment(A_3, T_2) → h_2