The Orthocenter of the Medial Triangle

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show circumradii
The circumcenter O of a triangle is the orthocenter of its medial triangle.

Details

See Problem 1 in N. Altshiller-Court, College Geometry, 2nd ed., Mineola, NY: Dover, 2007 p. 96.

External Links

Circumcenter (Wolfram MathWorld)
Circumcircle (Wolfram MathWorld)
Medial Triangle (Wolfram MathWorld)
Orthocenter (Wolfram MathWorld)

Permanent Citation

Jay Warendorff
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​"The Orthocenter of the Medial Triangle"​
​http://demonstrations.wolfram.com/TheOrthocenterOfTheMedialTriangle/​
​Wolfram Demonstrations Project​
​Published: March 7, 2011