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Circumradii Perpendicular to the Sides of the Orthic Triangle


	The radii from the center O of the circumcircle of a triangle to its vertices are perpendicular to the corresponding sides of the orthic triangle.


	Contributed by: Jay Warendorff

See Theorem 188 in N. Altshiller-Court, College Geometry, Mineola, NY: Dover, 2007 p. 98.

Circumcircle (Wolfram MathWorld)

Circumradius (Wolfram MathWorld)

Orthic Triangle (Wolfram MathWorld)

Perpendicular (Wolfram MathWorld)

"Circumradii Perpendicular to the Sides of the Orthic Triangle" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/CircumradiiPerpendicularToTheSidesOfTheOrthicTriangle/

Contributed by: Jay Warendorff

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