bn:00851965n
Noun Concept
Categories: Circles defined for a triangle
EN
nine-point circle  9-point circle  9 Point Circle  Feuerbach Circle  Euler's circle
EN
In geometry, the nine-point circle is a circle that can be constructed for any given triangle. Wikipedia
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EN
In geometry, the nine-point circle is a circle that can be constructed for any given triangle. Wikipedia
A circle that can be constructed for any given triangle Wikipedia Disambiguation
Circle passing through nine significant concyclic points defined from the triangle Wikidata
That circle which passes through the feet of the altitudes of a given triangle. Wiktionary
DISCOVERER OR INVENTOR