Parallel or Not?

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• Offline Activity (.zip)

• GeoGebra Files

  1. The two lines shown below never intersect. Move any one (or more) of the 3 points to make them "look" parallel to each other. (.ggb)
     
  2. The two lines shown below never intersect. Move any one (or more) of the 3 points to make them parallel to each other. (.ggb)
     
  3. The two lines shown below never intersect. Move any one (or more) of the 3 points to make them skew. (.ggb)