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(2979), using U = X(105)
Barycentrics af(a,b,c) : bf(b,c,a) : cf(c,a,b)
X(2991) lies on these lines:
6,344 31,1331 110,2203 193,608 239,1462 294,335 604,1445 918,1814 1911,2340X(2991) = reflection of X(1332) in X(6)
X(2991) = cevapoint of X(6) and X(518)
X(2991) = X(665)-cross conjugate of X(100)