G.GCI.1 Proving Circles are Similar

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• Offline Activity (.zip)

• GeoGebra Files

  1. Applet 1: Triangle ABC: A(-2, 7), B(-2, 3), C(1,3) Triangle DEF: D(3,7), E(3, -1), F(9, -1) (.ggb)
     
  2. Applet 2: Circle 1: center at (0,2), r = 3. Circle 2: center at (5,3), r = 9. (.ggb)
     
  3. Circle 1: center (-7, 5) radius other endpoint(1, -9) Circle 2: center (-3,10),radius other endpt (6,-11) (.ggb)