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 cos2A : cos2B : cos2C
= 1 + cos 2A : 1 + cos 2B : 1 + cos 2CBarycentrics sin A cos2A : sin B cos2B : sin C cos2C
X(255) lies on these lines: 1,21 3,73 35,991 36,1106 40,109 48,563 55,601 56,602 57,580 91,1109 92,1087 158,775 162,1099 165,1103 200,271 201,1060 219,268 293,304 326,1102 411,651 498,750 499,748
X(255) = isogonal conjugate of X(158)
X(255) = X(I)-Ceva conjugate of X(J) for these (I,J): (63,48), (283,3)
X(255) = crosspoint of X(63) and X(326)
X(255) = crosssum of X(I) and X(J) for these (I,J): (1,290), (4,1068), (19,1096)
X(255) = X(I)-aleph conjugate of X(J) for these (I,J): (775,255), (1105,158)