Golden rectangle zoom step by step

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You can either download the .ggb file alone or the complete webpage for students with tasks.

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• Offline Activity (.zip)

• GeoGebra Files

  1. Applet 1 (.ggb)
     
  2. First step : construct a square (poly1) a a point E. Define phi (the golden ratio) and this sequence in blue. (.ggb)
     
  3. Step 2 (.ggb)
     
  4. GeoGebra applet (.ggb)