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Subject: "quadrilaterals in triangles"     Previous Topic | Next Topic
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Conferences The CTK Exchange Middle school Topic #107
Reading Topic #107
duggi
Member since Sep-15-04
 Dec-14-04, 09:47 AM (EST)
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"quadrilaterals in triangles"
 
   In a triangle ABC, D ,E ,F are the midpoints of the sides AB BC and AC respectively. AX is perpendicular to BC. Prove that DXEF is a cyclic quadrilateral.


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alexbadmin
Charter Member
1397 posts		 Dec-14-04, 09:49 AM (EST)
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1. "RE: quadrilaterals in triangles"
In response to message #0
 
   Search this site or the web for "nine point circle", or "9 point circle".


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