The Feuerbach Point

Författare/skapare: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.

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Undersök matematisk områden

Rotation
Kub
Räknesätten
Rätvinkliga trianglar
Algebra