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 (y + z) sec A : (z + x) sec B : (x + y) sec C, x : y : z = X(278)
Barycentrics (y + z) tan A : (z + x) tan B : (x + y) tan C, x : y : z = X(278)
X(1864) lies on these lines:
3,1728 4,65 6,33 9,55 11,118 44,212 51,1824 56,1490 57,971 72,519 84,1466 227,774 329,497 381,942 389,1872 405,997 430,1827 452,960 1005,1776 1155,1708 1210,1532 1214,1736X(1864) = X(I)-Ceva conjugate of X(J) for these (I,J): (1210,1108), (1897,650)
X(1864) = crosspoint of X(I) and X(J) for these (I,J): (4,9), (8,282)
X(1864) = crosssum of X(I) and X(J) for these (I,J): (3,57), (56,223)