菱形构造演示 by hot_topic_gurl

菱形构造演示 by hot_topic_gurl
几何画板及绘图内容加载中,请稍等……
2016-04-05 20:24
①本范例演示菱形的几何构造与性质;②涉及核心数学概念包括多边形、解析几何、几何作图;③作图要点:使用 GeoGebra 命令 Segment(线段)、Line(直线)、OrthogonalLine(垂线)、Intersect(交点)、Midpoint(中点)、Distance(距离);对象包括点 A, B, a, C, b, c, d, e, D, f, E, g, h, F, G, H, I, i, j, k, l, distanceIF, TextIF, distanceFG, TextFG, distanceGH, TextGH, distanceHI, TextHI;④适合高中数学教学或几何爱好者学习。

GeoGebra 命令及参数

  1. Segment(A, B) → a
  2. Line(C, a) → b
  3. OrthogonalLine(A, b) → c
  4. OrthogonalLine(B, a) → d
  5. Segment(A, B) → e
  6. Intersect(b, d) → D
  7. Segment(B, D) → f
  8. Intersect(b, c) → E
  9. Segment(D, E) → g
  10. Segment(E, A) → h
  11. Midpoint(A, B) → F
  12. Midpoint(B, D) → G
  13. Midpoint(D, E) → H
  14. Midpoint(E, A) → I
  15. Segment(I, F) → i
  16. Segment(F, G) → j
  17. Segment(G, H) → k
  18. Segment(H, I) → l
  19. Distance(I, F) → distanceIF
  20. Distance(F, G) → distanceFG
  21. Distance(G, H) → distanceGH
  22. Distance(H, I) → distanceHI