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Dilation Demonstration by Peter Mitchell

Dilation Demonstration by Peter Mitchell
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2016-04-15 21:50
PolygonTransformationGeometric Construction
This example demonstrates the effect of geometric dilation on shapes, involving concepts like transformations, similarity, and scaling factors. It uses commands such as Point, Intersect, Polygon, and Dilate in GeoGebra. Suitable for high school students learning geometric transformations and similarity.

GeoGebra Commands & Parameters

  1. Point(xAxis) → G
  2. Point(yAxis) → H
  3. Intersect(xAxis, yAxis) → I
  4. Intersect(xAxis, yAxis) → D_1
  5. Point(yAxis) → K
  6. Polygon(B, A, D, C) → poly1, b, a, d, c
  7. Point(xAxis) → L
  8. Dilate(B, 3, L) → B'
  9. Dilate(A, 3, L) → A'
  10. Dilate(D, 3, L) → D'
  11. Dilate(C, 3, L) → C'
  12. Polygon(B', A', D', C') → poly1', b', a', d', c'