Difference between revisions of "Simson line"
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Revision as of 19:49, 23 June 2011
In geometry, given a triangle ABC and a point P on its circumcircle, the three closest points to P on lines AB, AC, and BC are collinear.
Proof
In the shown diagram, we draw additional lines 
and 
. Then, we have cyclic quadrilaterals 
, 
, and 
. (more will be added)
