平行六面体的体积

平行六面体的体积
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2017-06-05 05:09
①本范例演示平行六面体的体积计算与可视化;②涉及核心数学概念包括向量、点、线、面、体积、距离、角度等;③构造过程中运用了Vector(向量)、Line(线)、Intersect(交点)、Prism(棱柱)、Midpoint(中点)、Volume(体积)、Point(点)、Distance(距离)、Segment(线段)、OrthogonalLine(垂线)、Angle(角度)、PointIn(点在线上)等GeoGebra命令和对象;④适合高中立体几何教学或自学,帮助理解体积计算原理。

GeoGebra 命令及参数

  1. Vector(A, C) → u
  2. Vector(A, B) → v
  3. Vector(A, D) → w
  4. Line(D, v) → f
  5. Line(D, u) → g
  6. Line(B, w) → h
  7. Intersect(h, f) → E
  8. Line(E, g) → i
  9. Line(C, w) → j
  10. Intersect(g, j) → F
  11. Line(C, v) → k
  12. Line(B, u) → l
  13. Intersect(k, l) → G
  14. Line(F, k) → m
  15. Intersect(i, m) → H
  16. Vector(C, G) → a
  17. Vector(B, G) → b
  18. Vector(B, E) → c
  19. Vector(C, F) → d
  20. Vector(G, H) → e
  21. Vector(D, F) → n
  22. Vector(D, E) → p
  23. Vector(E, H) → q
  24. Vector(F, H) → r
  25. Prism(A, C, G, B, D) → o, I, edgeAC, edgeCG, edgeBG, edgeAB, edgeAD, edgeCI, edgeGJ, edgeBK, edgeDI, edgeIJ, J, edgeJK, edgeDK, K, faceABGC, faceACID, faceCGJI, faceBGJK, faceABKD, faceDIJK
  26. Midpoint(A, C) → L
  27. Midpoint(A, B) → M
  28. Midpoint(A, D) → N
  29. Volume(o) → volumeo
  30. Point(o) → Pointo
  31. Midpoint(A, P) → O
  32. Distance(P, A) → distancePA
  33. Segment(A, P) → t
  34. OrthogonalLine(D, t, space) → f_1
  35. Intersect(f_1, t) → Q
  36. Segment(D, Q) → g_1
  37. Angle(D, Q, A) → α
  38. Vector(A, Q) → u_1
  39. Midpoint(Q, A) → R
  40. Distance(A, Q) → distanceAQ
  41. Midpoint(A, Q) →
  42. Distance(A, Q) → a_1
  43. Midpoint(A, Q) →
  44. PointIn(faceABGC) → PointfaceABGC