The Feuerbach Point

Autor: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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Viviani's Curve
רישום חופשי
Model sferyczny - sześcian-ośmiościan

Descobrir recursos

ableitung
GoGeometry Action 90!
Example 3
Similar triangles with multiplication factor. - veu3

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