TOPICS
Search

Lemoine Triangle


LemoineTriangle

The Leonine triangle DeltaX_AX_BX_C (a term coined here for the first time), is the Cevian triangle of Kimberling center X_(598).

It is the polar triangle of the Lemoine inellipse.

It has the trilinear vertex matrix

 [0 (ac)/(-2a^2+b^2-2c^2) (ab)/(-2a^2-2b^2+c^2); (bc)/(a^2-2b^2-2c^2) 0 (ab)/(-2a^2-2b^2+c^2); (bc)/(a^2-2b^2-2c^2) (ac)/(-2a^2+b^2-2c^2) 0].

The vertices are the points of contact of the Lemoine inellipse with the sidelines of the reference triangle.


See also

Lemoine Inellipse

Explore with Wolfram|Alpha

Cite this as:

Weisstein, Eric W. "Lemoine Triangle." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/LemoineTriangle.html

Subject classifications