# A Line Associated with an Excircle

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An excircle is a circle drawn outside a triangle that is tangent to the extensions of two of its sides and to the third side.

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Contributed by: Jay Warendorff (March 2011)

Open content licensed under CC BY-NC-SA

## Snapshots

## Details

See problem 5 in Classical Theorems in Plane Geometry.

## Permanent Citation

"A Line Associated with an Excircle"

http://demonstrations.wolfram.com/ALineAssociatedWithAnExcircle/

Wolfram Demonstrations Project

Published: March 7 2011