X1921¶
CROSSDIFFERENCE OF PU(12)
X1921 (CROSSDIFFERENCE OF PU(12)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
Constructed Elements
Central Lines: {10, 75}, {37, 308}
Related Centers: X1922 (TRILINEAR POLE OF PU(12)), X10 (SPIEKER CENTER), X75 (ISOTOMIC CONJUGATE OF INCENTER), X37 (CROSSPOINT OF INCENTER AND CENTROID), X308 (ISOTOMIC CONJUGATE OF X39)
Trilinears: \(f(a,b,c) : f(b,c,a) : f(c,a,b)\), where \(f(a,b,c) = b^{3}c^{3}(a^{2} - bc)\)
Barycentrics: \(af(a,b,c) : bf(b,c,a) : cf(c,a,b)\)
Search Value (6, 9, 13): \(11.581311522770\)
Functional Relations6 relations
X1921 = isogonal conjugate of X1922
X1921 = isotomic conjugate of X292
X1921 = anticomplement of polar conjugate of isogonal conjugate of X23223
X1921 = perspector of Gemini triangle 32 and cross-triangle of ABC and Gemini triangle 32
X1921 = trilinear pole of perspectrix of ABC and Gemini triangle 31