Tangent Lines and the Radius of a Circle

This Tangent Lines and the Radius of a Circle activity & project also includes:

Your Geometry learners will collaboratively prove that the tangent line of a circle is perpendicular to the radius of the circle. A deliberately sparse introduction allows for a variety of approaches to find a solution. 

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CCSS: Designed
Pros

  • Includes very detailed description of the solution
  • A teacher commentary is also included
Cons

  • None
Common Core