Incircle, Excircles, Gergonne and Nagel

Author:
Steve Phelps
Topic:
Circle, Circumcircle or Circumscribed Circle, Incircle or Inscribed Circle, Triangles

The segments drawn from the point of tangency of a side and incircle to the opposite vertex is the Gergonne point.

The segments drawn from the point of tangency of a side and excircle to the opposite vertex is the Nagel point.

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