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Draw a Trapezoid

Draw a Trapezoid
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2015-12-09 07:49
PolygonMatrixGeometric Construction
In collections Hands in the Air: Square Translation Tessellation
This example demonstrates how to draw a trapezoid using GeoGebra. Key mathematical concepts include line segments, matrices, symmetry, and properties of trapezoids. Construction highlights the use of the Polygon command to draw polygons, the Segment command to draw line segments, and the Translate command for translation. Suitable for middle school and above students learning geometric construction.

GeoGebra Commands & Parameters

  1. Polygon(A, B, 4) → poly1, a, b, c, d, C, D
  2. Segment(B, E) → e
  3. Segment(E, F) → f
  4. Segment(F, G) → g
  5. Segment(G, H) → h
  6. Segment(H, I) → i
  7. Segment(I, J) → j
  8. Segment(J, K) → k
  9. Segment(K, L) → l
  10. Segment(L, M) → m
  11. Segment(M, N) → n
  12. Segment(N, O) → p
  13. Segment(O, P) → q
  14. Segment(P, Q) → r
  15. Segment(Q, R) → s
  16. Segment(R, S) → t
  17. Segment(S, T) → a_1
  18. Segment(T, U) → b_1
  19. Segment(U, V) → c_1
  20. Segment(V, W) → d_1
  21. Segment(W, Z) → e_1
  22. Segment(Z, A_1) → f_1
  23. Segment(A_1, B_1) → g_1
  24. Segment(B_1, C_1) → h_1
  25. Segment(C_1, C) → i_1
  26. Vector(B, A) → u
  27. Translate(B, u) → B'
  28. Translate(C, u) → C'
  29. Segment(B', C') → b'
  30. Translate(B, u) → B'_1
  31. Translate(E, u) → E'
  32. Segment(B'_1, E') → e'
  33. Translate(E, u) → E'_1
  34. Translate(F, u) → F'
  35. Segment(E'_1, F') → f'
  36. Translate(F, u) → F'_1
  37. Translate(G, u) → G'
  38. Segment(F'_1, G') → g'
  39. Translate(G, u) → G'_1
  40. Translate(H, u) → H'
  41. Segment(G'_1, H') → h'
  42. Translate(H, u) → H'_1
  43. Translate(I, u) → I'
  44. Segment(H'_1, I') → i'
  45. Translate(I, u) → I'_1
  46. Translate(J, u) → J'
  47. Segment(I'_1, J') → j'
  48. Translate(J, u) → J'_1
  49. Translate(K, u) → K'
  50. Segment(J'_1, K') → k'
  51. Translate(K, u) → K'_1
  52. Translate(L, u) → L'
  53. Segment(K'_1, L') → l'
  54. Translate(L, u) → L'_1
  55. Translate(M, u) → M'
  56. Segment(L'_1, M') → m'
  57. Translate(M, u) → M'_1
  58. Translate(N, u) → N'
  59. Segment(M'_1, N') → n'
  60. Translate(N, u) → N'_1
  61. Translate(O, u) → O'
  62. Segment(N'_1, O') → p'
  63. Translate(O, u) → O'_1
  64. Translate(P, u) → P'
  65. Segment(O'_1, P') → q'
  66. Translate(P, u) → P'_1
  67. Translate(Q, u) → Q'
  68. Segment(P'_1, Q') → r'
  69. Translate(Q, u) → Q'_1
  70. Translate(R, u) → R'
  71. Segment(Q'_1, R') → s'
  72. Translate(R, u) → R'_1
  73. Translate(S, u) → S'
  74. Segment(R'_1, S') → t'
  75. Translate(S, u) → S'_1
  76. Translate(T, u) → T'
  77. Segment(S'_1, T') → j_1
  78. Translate(T, u) → T'_1
  79. Translate(U, u) → U'
  80. Segment(T'_1, U') → k_1
  81. Translate(U, u) → U'_1
  82. Translate(V, u) → V'
  83. Segment(U'_1, V') → l_1
  84. Translate(V, u) → V'_1
  85. Translate(W, u) → W'
  86. Segment(V'_1, W') → m_1
  87. Translate(W, u) → W'_1
  88. Translate(Z, u) → Z'
  89. Segment(W'_1, Z') → n_1
  90. Translate(Z, u) → Z'_1
  91. Translate(A_1, u) → D_1
  92. Segment(Z'_1, D_1) → p_1
  93. Translate(A_1, u) → E_1
  94. Translate(B_1, u) → F_1
  95. Segment(E_1, F_1) → q_1
  96. Translate(B_1, u) → G_1
  97. Translate(C_1, u) → H_1
  98. Segment(G_1, H_1) → r_1
  99. Translate(C_1, u) → I_1
  100. Translate(C, u) → C'_1
  101. Segment(I_1, C'_1) → s_1
  102. Segment(B, J_1) → t_1
  103. Segment(J_1, K_1) → a_2
  104. Segment(K_1, L_1) → b_2
  105. Segment(L_1, M_1) → c_2
  106. Segment(M_1, N_1) → d_2
  107. Segment(N_1, O_1) → e_2
  108. Segment(O_1, P_1) → f_2
  109. Segment(P_1, Q_1) → g_2
  110. Segment(Q_1, R_1) → h_2
  111. Segment(R_1, A) → i_2