bn:00852090n
Noun Concept
Categories: Triangle geometry, Quadrilaterals
EN
orthocentric system  orthocentric  Orthocentric group
EN
In geometry, an orthocentric system is a set of four points on a plane, one of which is the orthocenter of the triangle formed by the other three. Wikipedia
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EN
In geometry, an orthocentric system is a set of four points on a plane, one of which is the orthocenter of the triangle formed by the other three. Wikipedia
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