2D Vectors and Circle Geometric Construction

2D Vectors and Circle Geometric Construction
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2020-01-17 18:56
This example demonstrates the interactive geometric construction of 2D vectors, circles, and related geometric elements. Core math concepts include vector operations, circle properties, parametric equations, tangent and normal lines, and geometric constructions. Key GeoGebra commands and objects used (derived from the construction summary) are Line, OrthogonalLine, Vector, Midpoint, Intersect, etc. Suitable for high school and above learners to understand the integration of vectors, geometric transformations, and analytical geometry.

GeoGebra Commands & Parameters

  1. Line(A, B) → s
  2. OrthogonalLine(A, s) → b
  3. LineBisector(A, B) → m
  4. Vector(A, B) → u
  5. OrthogonalVector(u) → v
  6. Midpoint(I_3, A) → K_3
  7. OrthogonalLine(K_3, m) → i
  8. OrthogonalLine(R, i) → h_1
  9. Line(J_1, i) → m_1
  10. Mirror(m_1, i) → q_1
  11. Line(F_2, s) → q_2
  12. Intersect(m_1, h_1) → G_1
  13. Line(G_2, E_1) → i_1
  14. OrthogonalLine(M_3, b) → g_4
  15. Line(F, g_4) → h
  16. Intersect(m, s) → C
  17. Mirror(h, i) → h'
  18. Intersect(b, h') → H
  19. OrthogonalLine(D, i) → f
  20. Intersect(f, h') → I
  21. Midpoint(H, I) → J
  22. Mirror(J, i) → J'
  23. OrthogonalLine(B, u, xOyPlane) → g
  24. Mirror(I_3, m) → J_3
  25. Polygon(A, B, J_3, I_3) → q1, a_1, b_1, j_3, i_3
  26. Mirror(f, m) → f'
  27. Mirror(D, m) → D'
  28. Mirror(D, i) → D'_1
  29. Mirror(D', i) → D''
  30. Intersect(h, f) → E
  31. Line(L, D_1) → j
  32. Line(K, j) → k
  33. Line(M, s) → l
  34. Line(N, k) → n
  35. Intersect(k, g_4) → O
  36. Intersect(j, g_4) → P
  37. Intersect(k, h) → Q
  38. Intersect(n, h) → S
  39. Intersect(n, l) → T
  40. Intersect(k, l) → U
  41. Intersect(j, l) → V
  42. Intersect(n, g_4) → W
  43. OrthogonalLine(Z, h') → p
  44. Intersect(p, g_4) → A_1
  45. Intersect(p, l) → B_1
  46. Intersect(p, h) → C_1
  47. Semicircle(Z, A_1) → c
  48. Semicircle(B_1, C_1) → d
  49. Polygon(K, L, P, O) → q2, k_1, l_1, p_1, o_1
  50. Polygon(V, U, Q, D_1) → q3, q, e, f_1, g_1
  51. Polygon(N, Z, A_1, W) → q4, n_1, z_1, r, w
  52. Polygon(T, B_1, C_1, S) → q5, t, a, c_1, s_1
  53. Mirror(E, m) → E'
  54. Line(H_1, h_1) → j_1
  55. Intersect(j_1, m_1) → I_1
  56. Intersect(i_1, q_2) → F_1
  57. Line(K_1, i) → r_1
  58. Intersect(i_1, r_1) → L_1
  59. Intersect(g_4, i_1) → M_1
  60. CurveCartesian(((1 - t)^(4) * I_1) + (((4 * (1 - t)^(3)) * t) * N_1) + (((6 * (1 - t)^(2)) * t^(2)) * P_1) + (((4 * (1 - t)) * t^(3)) * O_1) + (t^(4) * M_1), t, 0, 1) → d_1
  61. OrthogonalLine(N_1, l) → t_1
  62. Intersect(t_1, l) → R_1
  63. CurveCartesian(((1 - t)^(4) * I_1) + (((4 * (1 - t)^(3)) * t) * Q_1) + (((6 * (1 - t)^(2)) * t^(2)) * R_1) + (((4 * (1 - t)) * t^(3)) * S_1) + (t^(4) * M_1), t, 0, 1) → u_1
  64. CurveCartesian(((1 - t)^(4) * T_1) + (((4 * (1 - t)^(3)) * t) * Z_1) + (((6 * (1 - t)^(2)) * t^(2)) * B_2) + (((4 * (1 - t)) * t^(3)) * A_2) + (t^(4) * L_1), t, 0, 1) → v_1
  65. Polygon(D'_1, D'', D', D) → q6, d'_1, d'', d', d_2
  66. Polygon(F_1, U_1, T_1, L_1) → q7, e_1, f_2, g_2, h_2
  67. Polygon(F_1, U_1, B_2, L_1) → q8, i_2, j_2, b_2, k_2
  68. Midpoint(U_1, F_1) → W_1
  69. Midpoint(T_1, U_1) → C_2
  70. Vector(C_2, U_1) → w_1
  71. Polygon(W_1, U_1, D_2) → t1, l_2, m_2, n_2
  72. LineBisector(D_2, W_1) → p_2
  73. Intersect(p_2, l) → E_2
  74. CircleArc(E_2, W_1, D_2) → c_2

AI Drawing Prompt Reference

Draw a geometric construction of 2D vectors and circles, showcasing vector operations, circle properties, parametric equations, tangent, and normal lines. Start by drawing a line segment and its perpendicular line, then construct vectors and their orthogonal counterparts. Find the midpoint of the segment and related perpendiculars, and apply mirror transformations. Finally, combine intersection points and semicircles to complete the geometric elements.
The prompt above was compiled from the original drawing commands and is for reference only.