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Nine-Point Circle
The nine-point circle associated with a given triangle passes through the perpendicular feet (green), the midpoints of the sides (black), and the midpoints (red) of the segments connecting the vertices with the orthocenter H.
Contributed by:
Chris Boucher
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Nine-Point Circle
(
Wolfram
MathWorld
)
PERMANENT CITATION
Chris Boucher
"
Nine-Point Circle
"
http://demonstrations.wolfram.com/NinePointCircle/
Wolfram Demonstrations Project
Published: June 5, 2007
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Related Topics
Plane Geometry
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High School Geometry
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