Properties of Parallelogram Demo

Properties of Parallelogram Demo
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2018-11-08 00:47
This applet demonstrates the geometric properties of a parallelogram through interactive elements, aiding learners in understanding concepts like parallel line properties, equal opposite sides, equal opposite angles, and bisecting diagonals. It is constructed using commands such as Segment, Line, Intersect, Midpoint, Angle, Polygon, and Mirror. Suitable for middle school and above students for geometry instruction and concept exploration.

GeoGebra Commands & Parameters

  1. Segment(A, B) → a
  2. Segment(A, D) → b
  3. Line(D, a) → c
  4. Line(B, b) → d
  5. Intersect(c, d) → C
  6. Segment(D, C) → e
  7. Segment(B, C) → f
  8. Midpoint(A, C) → E
  9. Segment(A, E) → g
  10. Segment(E, C) → h
  11. Segment(D, E) → i
  12. Segment(E, B) → j
  13. Angle(B, A, E) → α
  14. Angle(D, C, E) → β
  15. Angle(E, A, D) → γ
  16. Angle(C, B, E) → δ
  17. Angle(A, D, E) → ε
  18. Angle(E, B, A) → ζ
  19. Angle(E, D, C) → η
  20. Angle(E, C, B) → θ
  21. Angle(C, E, D) → ι
  22. Polygon(A, B, C) → poly1, c_1, a_1, b_1
  23. Mirror(A, g) → A'
  24. Mirror(B, g) → B'
  25. Mirror(C, g) → C'
  26. Polygon(A', B', C') → poly1', c', a', b'
  27. Polygon(A, B, D) → poly2, d_1, a_2, b_2
  28. Mirror(A, j) → A'_1
  29. Mirror(B, j) → B'_1
  30. Mirror(D, j) → D'
  31. Polygon(A'_1, B'_1, D') → poly2', d', a'_1, b'_1
  32. Angle(B, A, D) → κ
  33. Angle(A, D, C) → λ
  34. Angle(D, C, B) → μ
  35. Angle(C, B, A) → ν
  36. Polygon(A, B, C, D) → poly3, a_3, b_3, c_2, d_2