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GoGeometry Action 13!

Author:
Tim Brzezinski
Topic:
Circle, Secant Line or Secant
Creation of this applet was inspired by a tweet from Antonio Gutierrez. In the applet below, the blue circle and green circle are concentric circles. How can you formally prove what this applet informally illustrates?

Quick (Silent) Demo

Related Topics

  • Intersection
  • Line Segment
  • Median Line
  • Tangent Line or Tangent
  • Area

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  • Midpoint Quad Activity SM1
  • треугольник
  • Investigating the derivative of a cubic.
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  • Statistical Characteristics

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