Perpendiculars from the Midpoints of the Orthic Triangle

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Let ABC be a triangle. The triangle formed by the endpoints of the altitudes is called the orthic triangle of ABC.


Perpendicular lines from the midpoints of the sides of the orthic triangle of ABC to the opposite sides of ABC are concurrent.


Contributed by: Jay Warendorff (March 2011)
Open content licensed under CC BY-NC-SA




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