Tangent Lines (P3)

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• Offline Activity (.zip)

• GeoGebra Files

  1. THEOREM: (The Hat Theorem) If two tangent segments to a circle share a common endpoint outside the circle, then the two segments are congruent. (.ggb)
     
  2. THEOREM: The angle formed by a tangent line and a secant line is half of the difference of the intercepted arcs. (.ggb)