Vertical Angles: A Quick Exploration

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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. Part 1: Use the protractor to measure angles 1 and 2 below. (.ggb)
     
  2. Part 2: Use the slider below to change the sizes of angles 1 and 2. Use the protractor to measure them both again. (.ggb)