Interactive Applet |
You can move the points A, B and C (click on the point and drag it).
Press the keys “+” and “−” to zoom in or zoom out the visualization window and use the arrow keys to translate it.
You can also construct all centers related with this one (as described in ETC) using the “Run Macro Tool”. To do this, click on the icon , select the center name from the list and, then, click on the vertices A, B and C successively.
Information from Kimberling's Encyclopedia of Triangle Centers |
Trilinears f(a,b,c) : f(b,c,a) : f(c,a,b), where f(a,b,c) = 1/[a(b - c)(b + c - a)]
Barycentrics g(a,b,c) : g(b,c,a) : g(c,a,b), where g(a,b,c) = af(a,b,c)
X(664) lies on these lines:
1,85 7,528 8,348 69,347 73,290 75,77 99,109 100,658 101,514 145,279 150,952 175,490 176,489 190,644 223,312 226,671 239,241 307,319 322,326 648,653 668,1026 1018,1025X(664) = reflection of X(1121) in X(2)
X(664) = isogonal conjugate of X(663)
X(664) = isotomic conjugate of X(522)
X(664) = X(I)-cross conjugate of X(J) for these (I,J): (100,190), (514,85), (521,333), (522,2)
X(664) = crosssum of X(512) and X(810)