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Similarity Transformation by Erzsi Dombi

Similarity Transformation by Erzsi Dombi
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2020-06-19 17:22
PolygonAngleTransformation
This example demonstrates the concept of similarity transformation. Using GeoGebra commands such as Dilate (similarity transformation), Segment (line segment), and Polygon (polygon), it visually illustrates how a figure can be enlarged or reduced while keeping the angles unchanged. Key mathematical concepts include similarity transformation, angles, and line segments. Suitable for middle school and above students or teachers for teaching and learning about similarity transformation.

GeoGebra Commands & Parameters

  1. Polygon(A, B, C) → t1, c, a, b
  2. InteriorAngles(t1) → α, β, γ
  3. Polygon(D, E, F) → t2, f, d, e
  4. Segment(G, H) → g
  5. Dilate(G, k, O) → G'
  6. Dilate(H, k, O) → H'
  7. Segment(G', H') → g'
  8. Line(G, I) → h
  9. Line(H, H') → i
  10. Slope(g) → m
  11. Slope(g') → m_1
  12. Angle(O, G, H) → δ
  13. Angle(G, G', H') → ε