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Exploring Rotations on the Coordinate Plane by Kim Kembitzky

Exploring Rotations on the Coordinate Plane by Kim Kembitzky
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2017-03-24 04:10
Coordinate GeometryTransformationGeometric Construction
This example demonstrates rotations on the coordinate plane. Key mathematical concepts include rotation transformations and coordinate geometry. Using commands like Polygon, Rotate, CircleArc, and Line in GeoGebra, the construction of rotated figures is illustrated. Suitable for middle school and above students learning geometric transformations.

GeoGebra Commands & Parameters

  1. Polygon(A, B, C) → poly1, c, a, b
  2. Rotate(A, Degrees, Center) → A'
  3. Rotate(B, Degrees, Center) → B'
  4. Rotate(C, Degrees, Center) → C'
  5. Polygon(A', B', C') → poly1', c', a', b'
  6. CircleArc(Center, C, C') → d
  7. CircleArc(Center, B, B') → e
  8. CircleArc(Center, A, A') → f
  9. Line(D, E) → g
  10. Line(F, G) → h
  11. Line(F, G) → i
  12. Line(E, D) → j
  13. Line(Center, j) → k
  14. Line(Center, i) → l
  15. Polygon(Center, H, C) → poly2, c_1, center, h_1
  16. Rotate(Center, Degrees, Center) → Center'
  17. Rotate(H, Degrees, Center) → H'
  18. Rotate(C, Degrees, Center) → C'_1
  19. Polygon(Center', H', C'_1) → poly2', c'_1, center', h'