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Exploring Dilations by Mr. Lietzow

Exploring Dilations by Mr. Lietzow
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2016-11-24 22:54
Coordinate GeometryTransformationGeometric Construction
This applet allows students to explore changes to the scale factor and the center of dilation dynamically. Core math concepts include dilation, scale factor, and center of dilation. It uses commands like Polygon, Ray, Dilate, and Distance. Suitable for middle school and above students to learn about the concept and application of dilation.

GeoGebra Commands & Parameters

  1. Polygon(A, B, C, D, E) → poly1, a, b, c, d, e
  2. Ray(O, A) → f
  3. Ray(O, B) → g
  4. Ray(O, D) → h
  5. Ray(O, E) → i
  6. Ray(O, C) → j
  7. Dilate(A, r, O) → A'
  8. Dilate(B, r, O) → B'
  9. Dilate(C, r, O) → C'
  10. Dilate(D, r, O) → D'
  11. Dilate(E, r, O) → E'
  12. Polygon(A', B', C', D', E') → poly1', a', b', c', d', e'
  13. Distance(O, A) → distanceOA
  14. Distance(O, A') → distanceOA'
  15. Distance(O, B) → distanceOB
  16. Distance(O, B') → distanceOB'