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Properties of Parallelograms Investigation

Properties of Parallelograms Investigation
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2019-02-05 09:21
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This example provides 3 quick investigative applets to help students recall the special properties of parallelograms. It involves core math concepts like parallel opposite sides, equal opposite angles, and bisecting diagonals. Constructed using GeoGebra commands such as Line, Slope, PointIn, Vector, Translate, Segment, Polygon, and Dilate, with objects like A, B, a, m, b, c, etc. Ideal for middle school and above students for geometry learning and exploration.

GeoGebra Commands & Parameters

  1. Line(A, B) → a
  2. Slope(a) → m
  3. PointIn(c) → C
  4. Line(C, a) → e
  5. Vector(A, B) → u
  6. Translate(C, u) → C'
  7. Segment(A, B) → h
  8. Segment(A, C) → d
  9. Polygon(A, B, C') → poly1, c', a_1, b_1
  10. Polygon(A, C', C) → poly2, c_1, a_2, c'_1
  11. Dilate(A, If[0 < k ≤ 1, 1 - k, 0], C) → A'
  12. Vector(A, A') → v
  13. Translate(A, v) → A'_1
  14. Translate(B, v) → B'
  15. Segment(A'_1, B') → h'
  16. Dilate(C, If[1 < k ≤ 2, 2 - k, 0], C') → C'_1
  17. Vector(C, C'_1) → w
  18. Translate(A, w) → A'_2
  19. Translate(C, w) → C'_2
  20. Segment(A'_2, C'_2) → d'
  21. Polygon(A, B, C', C) → poly3, a_3, b_2, c'_2, c_2