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A Congruent Angle inside the Incircle
Let ABC be a triangle and let O be the center of the incircle. Let E be the point of tangency of the incircle with AC. Let AO and CO intersect the line drawn through the other two points of tangency at F and D, respectively. Then
.
Contributed by:
Jay Warendorff
After work by:
Antonio Gutierrez
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The statement of the theorem is in
Problem 52. Triangle, Angles, Incircle
.
RELATED LINKS
Incircle
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MathWorld
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PERMANENT CITATION
"
A Congruent Angle inside the Incircle
" from
the Wolfram Demonstrations Project
http://demonstrations.wolfram.com/ACongruentAngleInsideTheIncircle/
Contributed by:
Jay Warendorff
After work by:
Antonio Gutierrez
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