Proof of Excircle at Triangle's Intersection Pt

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Thread starter Grout
Start date Dec 30, 2013
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Grout

Thread starter
Dec 30, 2013

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

Gold Member

Dec 30, 2013

Have you tried google?

Proof of Excircle at Triangle's Intersection Pt

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