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(208)
Barycentrics (y + z) tan A : (z + x) tan B : (x + y) tan C, x : y : z = X(208)
X(1854) lies on these lines:
1,84 6,1858 33,64 55,976 56,774 154,968 227,1490 960,1040 1192,1452 1837,1853X(1854) = reflection of X(221) in X(1)
X(1854) = crosspoint of X(4) and X(280)
X(1854) = crosssum of X(I) and X(J) for these (I,J): (1,1394), (3,221), (55,478)