## X(158) (X(19)-CROSS CONJUGATE OF X(92))

 Interactive Applet

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 Information from Kimberling's Encyclopedia of Triangle Centers

Trilinears           sec2A : sec2B : sec2C
= 1/(1 + cos 2A) : 1/(1 + cos 2B) : 1/(1 + cos 2C)

Barycentrics    sec A tan A : sec B tan B : sec C tan C

X(158) lies on these lines:

X(158) = isogonal conjugate of X(255)
X(158) = isotomic conjugate of X(326)
X(158) = X(I)-cross conjugate of X(J) for these (I,J): (19,92), (225,4)
X(158) = crosssum of X(520) and X(1364)
X(158) = crossdifference of any two points on line X(680)X(822)
X(158) = X(I)-aleph conjugate of X(J) for these (I,J): (821,158), (1105,255)
X(158) = X(107)-beth conjugate of X(34)

This is a joint work of
Humberto José Bortolossi, Lis Ingrid Roque Lopes Custódio and Suely Machado Meireles Dias.