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Trapezoid Properties Investigation by Marcia cyr

Trapezoid Properties Investigation by Marcia cyr
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2019-12-11 09:43
PolygonAngleGeometric Construction
This example demonstrates the properties of a trapezoid through an interactive tool. It involves core mathematical concepts like polygons, angles, distances, and geometric constructions. GeoGebra commands and objects such as Point, Ray, Polygon, Segment, Intersect, Angle, and Distance are used in the construction. Suitable for middle school and above students to learn and understand trapezoid geometry.

GeoGebra Commands & Parameters

  1. Point(a) → A
  2. Point(a) → Z
  3. Ray(A, Z) → b
  4. Point(b) → D
  5. Point(c) → Y
  6. Ray(B, Y) → d
  7. Point(d) → C
  8. Polygon(A, B, C, D) → poly1, a_1, b_1, c_1, d_1
  9. Segment(B, D) → e
  10. Segment(C, A) → f
  11. Intersect(e, f) → X
  12. Segment(A, X) → g
  13. Segment(X, C) → j
  14. Segment(X, B) → k
  15. Segment(X, D) → l
  16. Angle(A, X, D) → α
  17. Angle(A, B, C) → β
  18. Angle(B, C, D) → γ
  19. Angle(C, D, A) → δ
  20. Angle(D, A, B) → ε
  21. Angle(X, B, C) → ζ
  22. Angle(B, C, X) → η
  23. Angle(X, C, D) → θ
  24. Angle(C, D, X) → ι
  25. Angle(X, D, A) → κ
  26. Angle(D, A, X) → λ
  27. Angle(X, A, B) → μ
  28. Angle(A, B, X) → ν
  29. Distance(b_1, a_1) → m