The Feuerbach Point

Auteur: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.

Nieuw didactisch materiaal

Rolling a Square
Parallel Lines & Related Angles: Quick Reminders
Perimeter of a Rectangle with Unknown Sides
The Coordinate Plane (Cartesian Plane)
General Polar Equation of Conics with Rotation (2)

Ontdek materiaal

Vectors in R3
Ggb-SL-RL en sinus en permanent avec saturation
MaguireCartesian
Paraboloid and plane intersection
Animated translation of Spiral squares
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Ontdek onderwerpen

Hoeken
Histogram
Logica
Toevalsexperimenten
Hellingsfunctie