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Rhombus Properties Demo by David Bookston

Rhombus Properties Demo by David Bookston
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2016-12-03 01:21
PolygonAngleGeometric Construction
This example demonstrates the geometric properties of a rhombus, providing an interactive resource for struggling students to informally discover symmetry, side lengths, and angle relationships. Core math concepts include polygons, symmetry, angles, and line segments. Construction involves commands like Circle, Point, Intersect, Segment, Midpoint, Angle, Polygon, and Mirror. Suitable for middle school and above, aiding geometric instruction and concept comprehension.

GeoGebra Commands & Parameters

  1. Circle(A, B) → c
  2. Point(c) → D
  3. Circle(B, A) → d
  4. Circle(D, A) → e
  5. Intersect(d, e, 2) → C
  6. Segment(A, B) → a
  7. Segment(B, C) → b
  8. Segment(C, D) → f
  9. Segment(D, A) → g
  10. Midpoint(A, C) → E
  11. Segment(D, E) → h
  12. Segment(E, B) → i
  13. Segment(C, E) → j
  14. Segment(E, A) → k
  15. Angle(D, C, E) → α
  16. Angle(E, C, B) → β
  17. Angle(B, A, E) → γ
  18. Angle(E, A, D) → δ
  19. Angle(C, B, E) → ε
  20. Angle(E, B, A) → ζ
  21. Angle(E, D, C) → η
  22. Angle(A, D, E) → θ
  23. Angle(C, E, D) → ι
  24. Polygon(A, B, C) → poly1, c_1, a_1, b_1
  25. Mirror(A, k) → A'
  26. Mirror(B, k) → B'
  27. Mirror(C, k) → C'
  28. Polygon(A', B', C') → poly1', c', a', b'
  29. Polygon(D, A, B) → poly2, b_2, d_1, a_2
  30. Mirror(D, h) → D'
  31. Mirror(A, h) → A'_1
  32. Mirror(B, h) → B'_1
  33. Polygon(D', A'_1, B'_1) → poly2', b'_1, d', a'_1
  34. Polygon(A, B, C, D) → poly3, a_3, b_3, c_2, d_2
  35. Segment(D, B) → s
  36. Segment(A, C) → t