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Transversal Angles by Charlie Barth

Transversal Angles by Charlie Barth
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2015-11-17 03:29
AngleTransformationGeometric Construction
This example demonstrates alternate interior, same-side interior, corresponding, and alternate exterior angles. By constructing two parallel lines being intersected by a transversal, the relationships between these angles are shown. The construction uses commands like Line, Angle, and Point. Suitable for middle school and above students learning geometry.

GeoGebra Commands & Parameters

  1. Line(A, B) → a
  2. Line(C, a) → b
  3. Line(A, C) → c
  4. Angle(C, A, B) → α
  5. Point(b) → D
  6. Point(c) → E
  7. Angle(E, C, D) → β
  8. Point(b) → F
  9. Point(a) → J
  10. Point(b) → K
  11. Point(a) → L
  12. Point(b) → M
  13. Line(D, B) → d
  14. Line(J, K) → e
  15. Line(M, L) → f
  16. Point(d) → N
  17. Point(e) → O
  18. Point(f) → P
  19. Point(b) → Q
  20. Point(a) → R
  21. Point(f) → S
  22. Point(e) → T
  23. Point(d) → U
  24. Angle(A, B, D) → γ
  25. Angle(K, D, B) → δ
  26. Angle(L, J, T) → ε
  27. Angle(D, K, O) → ζ
  28. Angle(Q, M, L) → η
  29. Angle(M, L, R) → θ