互补与补充角:几何作图与计算

互补与补充角:几何作图与计算
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2022-10-26 17:10
这个范例演示了如何通过几何作图来理解互补和补充角的概念。核心数学概念包括角度的定义、互补角和补充角的计算。作图要点涉及使用GeoGebra命令如Polygon、Angle、Circle等来构造角度和图形。适合6-8年级学生用于几何学习或课堂演示。

GeoGebra 命令及参数

  1. Polygon(I, J, K, L) → q1, i, j, k, l
  2. Vector(C, V) → u
  3. PointIn(q1) → A
  4. Circle(A, 4) → c
  5. Point(c) → B
  6. Segment(A, B) → s11
  7. OrthogonalLine(A, s11) → perpLine
  8. Intersect(c, perpLine, 2) → MCOM
  9. Arc(c, B, MCOM) → complArc
  10. Mirror(B, A) → MSUP
  11. Arc(c, B, MSUP) → supplArc
  12. Point(If[choice ≤ 2, complArc, supplArc]) → B'
  13. Angle(B, A, B') → α
  14. Rotate(D, If[choice ≤ 2, 90° - α, 180° - α], C) → D'
  15. Point(s11) → E
  16. CircleSector(A, E, B') → d
  17. Segment(C, D) → s21
  18. Segment(A, B') → s12
  19. Angle(D, C, D') → β
  20. Segment(C, D') → s22
  21. Point(s21) → F
  22. CircleSector(C, F, D') → e
  23. Vector(A, V) → v
  24. Translate(e, Vector[(u * transSli2)]) → e'
  25. AngularBisector(B, A, B') → labLin1
  26. AngularBisector(D, C, D') → labLin2
  27. Intersect(e, labLin2) → L2,
  28. Translate(C, u) → C'
  29. Translate(C, u) → C'_{1}
  30. Translate(C, Vector[(transSli2 * u)]) → C'_{2}
  31. Translate(D, Vector[(transSli2 * u)]) → D'_{1}
  32. Segment(C'_{2}, D'_{1}) → s21'
  33. Translate(C, Vector[(transSli2 * u)]) → C'_{3}
  34. Translate(D', Vector[(transSli2 * u)]) → D''
  35. Segment(C'_{3}, D'') → s22'
  36. Translate(A, Vector[(transSli1 * v)]) → A'
  37. Translate(B', Vector[(transSli1 * v)]) → B''
  38. Segment(A', B'') → s12'
  39. Translate(A, Vector[(transSli1 * v)]) → A'_{1}
  40. Translate(B, Vector[(transSli1 * v)]) → B'_{1}
  41. Segment(A'_{1}, B'_{1}) → s11'
  42. Translate(d, Vector[(transSli1 * v)]) → d'
  43. Angle(D'', V, B'_{1}) → ang
  44. Rotate(d', (rotAng * rotSli), V) → d''
  45. Rotate(A'_{1}, (rotAng * rotSli), V) → G
  46. Rotate(B'_{1}, (rotAng * rotSli), V) → H
  47. Segment(G, H) → s11''
  48. Rotate(A', (rotAng * rotSli), V) → A''
  49. Rotate(B'', (rotAng * rotSli), V) → B'''
  50. Segment(A'', B''') → s12''
  51. Polygon(A, E, 4) → squa1, f, g, h, m, M, N
  52. Polygon(C, F, 4) → squa2, n, p, q, r, O, P
  53. Translate(squa1, Vector[(transSli1 * v)]) → squa1'
  54. Rotate(squa1', (rotAng * rotSli), V) → squa1''
  55. Translate(squa2, Vector[(transSli2 * u)]) → squa2'
  56. Translate(Polygon[C, F, 4], Vector[(transSli1 * u)]) → squaBlack
  57. Circle(A, 4.3) → cExt
  58. Mirror(B, cExt) → B'_{2}
  59. Segment(B, B'_{2}) → sv11
  60. Mirror(B', cExt) → B''_{1}
  61. Segment(B', B''_{1}) → sv12
  62. Translate(B, Vector[(transSli1 * u)]) → B'_{3}
  63. Translate(B', Vector[(transSli1 * u)]) → B''_{2}
  64. Translate(B', Vector[(transSli1 * v)]) → B''_{3}
  65. Translate(B''_{1}, Vector[(transSli1 * v)]) → Q
  66. Segment(B''_{3}, Q) → sv12'
  67. Translate(B, Vector[(transSli1 * v)]) → B'_{4}
  68. Translate(B'_{2}, Vector[(transSli1 * v)]) → R
  69. Segment(B'_{4}, R) → sv11'
  70. Rotate(B'_{4}, (rotAng * rotSli), V) → S
  71. Rotate(R, (rotAng * rotSli), V) → R'
  72. Segment(S, R') → sv11''
  73. Rotate(B''_{3}, (rotAng * rotSli), V) → T
  74. Rotate(Q, (rotAng * rotSli), V) → Q'
  75. Segment(T, Q') → sv12''
  76. circlePixels(B, 7 + (7 * pulsing), Corner[1], Corner[3], Corner[5]) → pulsingObject1
  77. circlePixels(B', 7 + (7 * pulsing), Corner[1], Corner[3], Corner[5]) → pulsingObject2
  78. Rotate(B, α - 15°, A) → BF

AI 绘图提示语参考

绘制一个圆,圆心为点C,半径为4。在圆上任选一点A,连接A和圆心C形成线段。作线段A的垂线,与圆的交点为MCOM。以B为圆心,MCOM为半径画一个圆弧,表示补角弧。以B为圆心,A为圆心,分别画两个圆弧,表示补角和余角。根据选择,选择补角或余角圆弧上的点B',连接A和B'形成角α。旋转点D,使其与角α的关系对应,形成角β。绘制角α和角β的角平分线,标记交点L2。
以上提示语为根据原始绘图命令整理而来,仅供参考。