*Incircle, Excircles, and the 9-Point Circle

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• Offline Activity (.zip)

• GeoGebra Files

  1. There are four circles tangent to three sides of a triangle... (.ggb)
     
  2. And one circle tangent to all four circles. (.ggb)
     
  3. Can you construct a 9-Point Circle Below? (worth 5 points on any former assessment; capped at 92%). (.ggb)