MathPlotAI Logo MathPlotAI

Prove Angle Congruence

Prove Angle Congruence
Loading the math board and drawing, please wait…
2016-11-03 08:07
AngleTransformationGeometric Construction
In collections Angle Congruence Theorems Proving Angle Congruence Theorems
This example demonstrates proving angle congruence through geometric transformations. It involves core math concepts like angles, congruence, rotation, and translation. Construction highlights include using GeoGebra commands such as Point, Segment, Circle, Rotate, etc. Ideal for high school students learning geometric transformations and proofs.

GeoGebra Commands & Parameters

  1. Point(xAxis) → A_1
  2. Segment(A_1, A) → f
  3. Max(x(A_1), x(A)) → a
  4. PointIn(b) → B
  5. Circle(B, f) → c
  6. Point(c) → D
  7. Segment(B, D) → g
  8. Circle(A, A_1) → d
  9. Line(A, A_1) → h
  10. Intersect(d, h, 2) → F
  11. CircleArc(A, A_1, F) → e
  12. Point(e) → E
  13. Angle(A_1, A, E) → α
  14. Rotate(D, α, B) → D'
  15. Segment(A, E) → i
  16. Segment(B, D') → j
  17. Circle(A, (0.5 * f)) → k
  18. Intersect(k, f) → G,
  19. Intersect(k, i) → H,
  20. Circle(B, (0.5 * f)) → p
  21. Intersect(p, g, 1) → I
  22. Intersect(p, j, 1) → J
  23. CircleSector(A, G, H) → q
  24. CircleSector(B, I, J) → r
  25. Segment(A, A_1) → l
  26. Segment(A, E) → m
  27. Segment(B, D) → n
  28. Segment(B, D') → s