Angle Bisectors of Triangles

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• Offline Activity (.zip)

• GeoGebra Files

  1. Given angle ABC. Use the geometry tools to construct the angle bisector. Label point D anywhere on the angle bisector. (.ggb)
     
  2. The angle bisectors for each angle of triangle ABC is given. Move the vertices to make different triangles. (.ggb)
     
  3. The incenter D of triangle ABC is given. A segment perpendicular to each side through point D is also given. (.ggb)