Intro to Dilation of a Point

Intro to Dilation of a Point
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2016-11-29 11:56
In collections Dilation Introduction
This applet demonstrates conceptually what it means to dilate a point about another point. It involves core math concepts like dilation transformation, distance calculation, and coordinate geometry. Construction highlights the use of GeoGebra commands and objects such as Textfield, Dilate, Segment, and Distance; students input a scale factor and select point A to visualize its dilation to A'. Suitable for middle school and above to understand geometric transformations and proportional relationships.

GeoGebra Commands & Parameters

  1. Textfield(k) → InputBox1
  2. Dilate(A, k, O) → A'
  3. Dilate(A, k, O) → A'_1
  4. Dilate(A, k, O) → A'_2
  5. Segment(O, A') → g
  6. Segment(O, A) → h
  7. Distance(A', O) → distanceA'O
  8. Distance(O, A) → distanceOA
  9. Distance(O, A') → distanceOA'