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菱形 by singhsaurabhi169

菱形 by singhsaurabhi169
几何画板及绘图内容加载中，请稍等……
2017-01-19 13:43
多边形角几何作图
这个范例演示菱形的几何构造。涉及的核心数学概念包括角度、线段和多边形。通过使用GeoGebra命令如Circle、Point、Intersect、Segment、Midpoint等，可以动态地展示菱形的性质。适合初中及以上学生学习几何作图。

GeoGebra 命令及参数

  1. Circle(A, B) → c
  2. Point(c) → D
  3. Circle(B, A) → d
  4. Circle(D, A) → e
  5. Intersect(d, e, 2) → C
  6. Segment(A, B) → a
  7. Segment(B, C) → b
  8. Segment(C, D) → f
  9. Segment(D, A) → g
  10. Midpoint(A, C) → E
  11. Segment(D, E) → h
  12. Segment(E, B) → i
  13. Segment(C, E) → j
  14. Segment(E, A) → k
  15. Angle(D, C, E) → α
  16. Angle(E, C, B) → β
  17. Angle(B, A, E) → γ
  18. Angle(E, A, D) → δ
  19. Angle(C, B, E) → ε
  20. Angle(E, B, A) → ζ
  21. Angle(E, D, C) → η
  22. Angle(A, D, E) → θ
  23. Angle(C, E, D) → ι
  24. Polygon(A, B, C) → poly1, c_1, a_1, b_1
  25. Mirror(A, k) → A'
  26. Mirror(B, k) → B'
  27. Mirror(C, k) → C'
  28. Polygon(A', B', C') → poly1', c', a', b'
  29. Polygon(D, A, B) → poly2, b_2, d_1, a_2
  30. Mirror(D, h) → D'
  31. Mirror(A, h) → A'_1
  32. Mirror(B, h) → B'_1
  33. Polygon(D', A'_1, B'_1) → poly2', b'_1, d', a'_1
  34. Polygon(A, B, C, D) → poly3, a_3, b_3, c_2, d_2
  35. Segment(D, B) → s
  36. Segment(A, C) → t