Excenter of triangle

by Grout
Tags: excenter, triangle
Grout is offline
Dec30-13, 12:05 AM
P: 1
This is just a curiosity from my part: Has anyone know the proof of "Intersection of one internal angle bisector and two external angle bisectors of triangle is the center of an excircle."? I tried some things, but no luck.
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adjacent is offline
Dec30-13, 01:04 AM
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P: 859
Have you tried google?

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