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Special Right Triangles by SCIPP

Special Right Triangles by SCIPP
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2018-03-15 23:58
TriangleTrigonometryGeometric Construction
This example demonstrates the construction and properties of two special right triangles: 30°-60°-90° and 45°-45°-90°. It involves core math concepts like trigonometry, similarity transformation, and geometric construction. The construction uses commands such as Segment, Rotate, Angle, Ray, Dilate, Line, Mirror in GeoGebra. Suitable for high school mathematics teaching or geometric construction learning.

GeoGebra Commands & Parameters

  1. Segment(A, B) → a
  2. Rotate(B, 90°, A) → B'
  3. Angle(B, A, B') → α
  4. Ray(A, B') → b
  5. Dilate(B', 1.7320508, A) → C
  6. Segment(C, A) → c
  7. Segment(C, B) → d
  8. Angle(A, C, B) → β
  9. Angle(C, B, A) → γ
  10. Rotate(E, 90°, D) → F
  11. Angle(E, D, F) → δ
  12. Segment(E, D) → f
  13. Segment(D, F) → g
  14. Segment(F, E) → h
  15. Angle(D, F, E) → ε
  16. Angle(F, E, D) → ζ
  17. Segment(C, A) → j
  18. Segment(A, B) → k
  19. Segment(B, C) → l
  20. Segment(D, E) → m
  21. Segment(E, F) → n
  22. Segment(F, D) → p
  23. Line(B, A) → a_1
  24. Mirror(B, c) → B'_1
  25. Segment(C, B'_1) → b_1
  26. Segment(B'_1, A) → c_1