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不规则图形面积：第3课

不规则图形面积：第3课
几何画板及绘图内容加载中，请稍等……
2016-03-23 02:09
多边形解析几何几何作图
所属专题 Area/Perimeter Area Lessons
本范例演示如何计算具有对角线的不规则图形面积，并让学生有机会创建自己的独特图形并计算其面积。核心数学概念包括面积计算和几何作图。使用了Polygon, Segment等GeoGebra命令。适合初中及以上学生学习。

GeoGebra 命令及参数

  1. Polygon(A, B, C, D) → poly1, a, b, c, d
  2. Segment(K, L) → k
  3. Segment(L, M) → l
  4. Segment(M, N) → m
  5. Segment(N, O) → n
  6. Segment(O, P) → p
  7. Segment(P, K) → q
  8. Segment(Q, R) → r
  9. Segment(R, S) → s
  10. Segment(S, T) → t
  11. Segment(T, U) → a_1
  12. Segment(U, Q) → b_1
  13. Segment(V, W) → c_1
  14. Segment(W, Z) → d_1
  15. Segment(Z, A_1) → e_1
  16. Segment(A_1, B_1) → f_1
  17. Segment(B_1, C_1) → g_1
  18. Segment(C_1, V) → h_1
  19. Segment(E, F) → e
  20. Segment(F, G) → f
  21. Segment(G, H) → g
  22. Segment(H, I) → h
  23. Segment(I, J) → i
  24. Segment(J, E) → j
  25. Segment(F_1, G_1) → k_1
  26. Segment(G_1, H_1) → l_1
  27. Segment(H_1, I_1) → m_1
  28. Segment(I_1, J_1) → n_1
  29. Segment(J_1, K_1) → p_1
  30. Segment(K_1, L_1) → q_1
  31. Segment(L_1, M_1) → r_1
  32. Segment(M_1, N_1) → s_1
  33. Segment(N_1, O_1) → t_1
  34. Segment(O_1, D_1) → a_2
  35. Segment(R_1, S_1) → d_2
  36. Segment(S_1, T_1) → e_2
  37. Segment(T_1, U_1) → f_2
  38. Segment(U_1, V_1) → g_2
  39. Segment(V_1, W_1) → h_2
  40. Segment(W_1, Z_1) → i_2
  41. Segment(Z_1, A_2) → j_2
  42. Segment(A_2, P_1) → k_2
  43. Segment(D_2, E_2) → n_2
  44. Segment(E_2, F_2) → p_2
  45. Segment(F_2, G_2) → q_2
  46. Segment(G_2, H_2) → r_2
  47. Segment(H_2, I_2) → s_2
  48. Segment(I_2, J_2) → t_2
  49. Segment(J_2, K_2) → a_3
  50. Segment(K_2, B_2) → b_3
  51. Segment(D_1, E_1) → i_1
  52. Segment(E_1, L_2) → j_1
  53. Segment(L_2, M_2) → c_3
  54. Segment(M_2, F_1) → d_3
  55. Segment(P_1, Q_1) → b_2
  56. Segment(Q_1, N_2) → c_2
  57. Segment(N_2, O_2) → e_3
  58. Segment(O_2, R_1) → f_3
  59. Segment(B_2, C_2) → l_2
  60. Segment(C_2, P_2) → m_2
  61. Segment(P_2, Q_2) → g_3
  62. Segment(Q_2, D_2) → h_3