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.

New Resources

Absolute Value Functions f(x)=a |x - h| + k
Linear Equation Graphs: Thin Slice
繪畫垂直線
Pythagorean Theorem: Quick Illustrator
Function art 3D - waiting shed

Discover Resources

Exterior Angle Sum Demo - Pentagon
Sample GeoGebra
Battleship Composition Example
พีทาโกรัส 1
Quiz Remainder and Factor Theorem

Discover Topics

Triangles
Exponent
Optimization Problems
Step Functions
Kite