The Feuerbach Point

Author: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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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
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Thales' Intercept Theorem
Tangent Plane to a Sphere
רישום חופשי

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Transformation Reflection Agochi
isosceles
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Linear Equations
Similarity Transformation or Similarity
Division
Unit Circle
Perimeter