## X(427) (COMPLEMENT OF X(22))

 Interactive Applet

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This applet was built with the free and multiplatform dynamic geometry software C.a.R..

 Information from Kimberling's Encyclopedia of Triangle Centers

Trilinears           f(A,B,C) : f(B,C,A) : f(C,A,B), where f(A,B,C) = sec A + cos(B - C)
Barycentrics    (sin A)f(A,B,C) : (sin B)f(B,C,A) : (sin C)f(C,A,B)

X(427) lies on these lines:
2,3    6,66    11,33    12,34    51,125    53,232    98,275    112,251    114,136    183,317    230,571    264,305    343,511

X(427) = midpoint of X(4) and X(378)
X(427) = isogonal conjugate of X(1176)
X(427) = isotomic conjugate of X(1799)
X(427) = inverse-in-nine-point-circle of X(468)
X(427) = inverse-in-orthocentroidal-circle of X(25)
X(427) = complement of X(22)
X(427) = complementary conjugate of X(206)
X(427) = X(112)-Ceva conjugate of X(523)
X(427) = X(39)-cross conjugate of X(141)
X(427) = crosspoint of X(4) and X(264)
X(427) = crosssum of X(I) and X(J) for these (I,J): (3,184), (6,206)
X(427) = X(4)-Hirst inverse of X(420)

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