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Dilation and Scale Factor

Dilation and Scale Factor
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2015-10-24 05:06
Coordinate GeometryTransformationGeometric Construction
This example demonstrates the concept of dilation, showing how to enlarge or reduce shapes by changing the scale factor. Key mathematical concepts include dilation, scale factor, and geometric construction. It uses commands like Polygon, Dilate, and PointIn in GeoGebra. Suitable for middle school and above students to learn about dilation and scale factor.

GeoGebra Commands & Parameters

  1. Polygon(A, B, C) → poly1, c, a, b
  2. Dilate(A, Scale, O) → A'
  3. Dilate(B, Scale, O) → B'
  4. Dilate(C, Scale, O) → C'
  5. Polygon(A', B', C') → poly1', c', a', b'
  6. PointIn(poly1) → Pointpoly1_1
  7. PointIn(poly1') → Pointpoly1'
  8. PointIn(poly1) → Pointpoly1