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Dilate a Triangle about the Origin

Dilate a Triangle about the Origin
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2016-01-18 21:35
TriangleTransformationGeometric Construction
This example demonstrates how to dilate a triangle about the origin using GeoGebra. Key mathematical concepts include similarity transformation and geometric construction. Commands used include Polygon, Intersect, and Dilate. Suitable for middle school and above students to learn about similarity transformations and their applications.

GeoGebra Commands & Parameters

  1. Polygon(A, B, C) → poly1, c, a, b
  2. Intersect(xAxis, yAxis) → D
  3. Dilate(A, d, D) → A'
  4. Dilate(B, d, D) → B'
  5. Dilate(C, d, D) → C'
  6. Polygon(A', B', C') → poly1', c', a', b'