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 cos(A - ω) : cos(B - ω) : cos(C - ω)
=cos A + sin A tan ω : cos B + sin B tan ω : cos C + sin C tan ω
= sin A - sin(A - 2ω) : sin B - sin(B - 2ω) : sin C - sin(C - 2ω)
= cos A + cos(A - 2ω) : cos B + cos(B - 2ω) : cos C + cos(C - 2ω) (cf., X(39))Barycentrics sin A cos(A - ω) : sin B cos(B - ω) : sin C cos(C - ω)
X(182) is the midpoint of the Brocard diameter (the segment X(3)-to-X(6)); also the center of the 1st Lemoine circle, and the center of the Brocard circle.
X(182) lies on these lines:
1,983 2,98 3,6 4,83 5,206 10,1678 22,51 24,1843 30,597 36,1469 40,1700 54,69 55,613 56,611 111,353 140,141 171,1397 373,1495 474,1437 517,1386 518,1385 524,549 692,1001 727,1293 729,1296 952,996 1676,1677X(182) is the {X(371),X(372)}-harmonic conjugate of X(39).
X(182) = midpoint of X(3) and X(6)
X(182) = reflection of X(I) in X(J) for these (I,J): (6,575), (141,140), (576,6)
X(182) = isogonal conjugate of X(262)
X(182) = isotomic conjugate of X(327)
X(182) = complement of X(1352)