The Feuerbach Point

Auteur :Steve Phelps

Construct the incircle and the three excircles of a triangle. The nine-point circle is tangent to all four circles. The point of tangency of the nine-point circle and the incircle is the Feuerbach Point.

Nouvelles ressources

Right Triangle Inscribed in a Semicircle
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Rovnoběžnost rovin

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Exploring the Fundamental Theorem of Algebra
Proof of Euclid Book III, Prop. 20
Incentro
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Ellipse
Coordonnées
Corrélation
Logique
Nombres Complexes