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Same Side Interior Angles Property Demonstration

Same Side Interior Angles Property Demonstration
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2017-09-27 05:19
AngleVectorTransformationGeometric Construction
This GeoGebra example demonstrates the supplementary property of same-side interior angles formed by parallel lines cut by a transversal. Key concepts include parallel line theorems, angle measurement, and geometric transformations. Construction utilizes Point, Line, Angle, Rotate, Translate, and Circle commands to create an interactive dynamic model. Ideal for middle school geometry students or educators illustrating angle relationships and parallel line properties.

GeoGebra Commands & Parameters

  1. Point(a) → B
  2. Rotate(B, α, A) → B'
  3. Angle(B, A, B') → β
  4. Line(A, B') → b
  5. Circle(A, 1) → e
  6. Intersect(b, d) → C
  7. Circle(C, 1) → f
  8. Intersect(e, a) → D, E
  9. Intersect(e, b) → F, G
  10. Intersect(f, b) → H, I
  11. Intersect(f, d) → J, K
  12. CircleSector(C, K, I) → g
  13. CircleSector(C, I, J) → h
  14. CircleSector(C, J, H) → k
  15. CircleSector(C, H, K) → p
  16. CircleSector(A, E, G) → q
  17. CircleSector(A, G, D) → r
  18. Dilate(A, If[0 < i < 1, 1 - i], C) → A'
  19. Vector(A, A') → u
  20. Translate(q, u) → q'
  21. Translate(r, u) → r'
  22. CircleArc(A, E, G) → c_1
  23. CircleArc(A, G, D) → f_1