Feuerbach's Theorem

Author: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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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Volume by Shells Around y
Circle Passing Through 3 Points
Triangle with 3 Right Angles
bewijs stelling van Pythagoras

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