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矩形的测量与探索

矩形的测量与探索
几何画板及绘图内容加载中，请稍等……
2015-10-12 22:35
多边形角解析几何几何作图
本范例通过测量和探索矩形的边、角和对角线的关系，帮助学生理解矩形的基本性质。使用GeoGebra命令如Line, OrthogonalLine, Point, Intersect等进行几何作图，适合初中及以上学生学习几何。

GeoGebra 命令及参数

  1. Line(D, C) → a
  2. OrthogonalLine(C, a) → b
  3. Point(b) → B
  4. OrthogonalLine(B, b) → c
  5. OrthogonalLine(D, a) → d
  6. Intersect(c, d) → A
  7. Polygon(A, B, C, D) → poly1, d_1, c_1, b_1, a_1
  8. Distance(A, B) → distanceAB
  9. Distance(B, C) → distanceBC
  10. Distance(C, D) → distanceCD
  11. Distance(D, A) → distanceDA
  12. Segment(A, C) → e
  13. Segment(B, D) → f
  14. Intersect(e, f) → E
  15. Distance(A, C) → distanceAC
  16. Distance(B, D) → distanceBD
  17. Distance(A, E) → distanceAE
  18. Distance(C, E) → distanceCE
  19. Distance(B, E) → distanceBE
  20. Distance(D, E) → distanceDE
  21. Angle(D, A, B) → α
  22. Angle(A, B, C) → β
  23. Angle(B, C, D) → γ
  24. Angle(C, D, A) → δ
  25. Angle(B, E, A) → ε
  26. Angle(C, E, B) → ζ
  27. Angle(D, E, C) → η
  28. Angle(A, E, D) → θ
  29. Angle(E, A, B) → ι
  30. Angle(A, B, E) → κ
  31. Angle(E, B, C) → λ
  32. Angle(B, C, E) → μ
  33. Angle(E, C, D) → ν
  34. Angle(C, D, E) → ξ
  35. Angle(E, D, A) → ο
  36. Angle(D, A, E) → ρ