Feuerbach's Theorem

Autore:V8frr

Feuerbach's theorem, which states that the nine-point circle is tangent to the three excircles of the triangle as well as its incircle. Drag A, B and C to see that this reamins invariable for any triangle.

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bewijs stelling van Pythagoras
Constructing the Midpoint and the Perpendicular Bisector of a Segment
Constructing the Perpendicular Line Through a Point Not on the Line
רישום חופשי
Conchoids of Nicomedes

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Small Spherical Volumes
Reflection from a Plane Mirror
Construction of Circle from three points
mera spljostenosti
lab6

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