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) is as given just before X(2677) using P = X(74), U = X(100)
Barycentrics af(a,b,c) : bf(b,c,a) : cf(c,a,b)
X(2687) lies on the circumcircle and these lines:
3,1290 4,2766 21,476 28,1304 30,100 35,2222 65,2720 74,513 101,2173 104,523 107,2074 108,186 109,484 110,517 376,2691 1006,2690X(2687) = reflection of X(1290) in X(3)
X(2687) = isogonal conjugate of X(2771)
X(2687) = X(2778)-cross conjugate of X(4)