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Rotating Polygon Animation

Rotating Polygon Animation
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2016-07-09 12:03
PolygonTransformationGeometric Construction
This example demonstrates an animation of a polygon rotating around a point. Key mathematical concepts include rotation, polygons, and angles. Using GeoGebra commands such as Rotate, Polygon, and Angle, dynamic geometric shapes can be constructed. Suitable for middle school and above students to learn geometric transformations and dynamic geometry.

GeoGebra Commands & Parameters

  1. Segment(A, B) → a
  2. OrthogonalLine(B, a) → b
  3. Point(b) → E
  4. Ray(B, E) → c
  5. Angle(A, B, E) → α
  6. Point(c) → C
  7. Segment(C, A) → d
  8. Angle(B, C, A) → β
  9. Segment(B, C) → e
  10. Rotate(B, If[0 < f ≤ 1, (f * β), β], C) → B'
  11. Rotate(C, If[0 < f ≤ 1, (f * β), 0], C) → C'
  12. Segment(B', C') → e'
  13. Angle(C, A, B) → γ
  14. Rotate(A, If[0 < g ≤ 1, ((-g) * γ), 0], A) → A'
  15. Rotate(B, If[0 < g ≤ 1, ((-g) * γ), 0], A) → B'_1
  16. Segment(A', B'_1) → a'
  17. Rotate(B, If[0 < h ≤ 1, ((-h) * α), 0], B) → B'_2
  18. Rotate(C, If[0 < h ≤ 1, ((-h) * α), 0], B) → C'_1
  19. Segment(B'_2, C'_1) → e'_1
  20. Polygon(B, A, C) → poly1, c_1, b_1, a_1
  21. Midpoint(e') → D
  22. Vector(F, D) → u
  23. Midpoint(a') → G
  24. Vector(H, G) → v
  25. Midpoint(e'_1) → I
  26. Vector(J, I) → w
  27. Ray(B, A) → j

AI Drawing Prompt Reference

Draw a triangle ABC, then rotate this triangle around point B while keeping point C fixed. Next, rotate point A around point C to form a new triangle A'B'C'. Finally, draw a ray j centered at point B passing through points A and C.
The prompt above was compiled from the original drawing commands and is for reference only.