X2980¶
ISOGONAL CONJUGATE OF X2979
X2980 (ISOGONAL CONJUGATE OF X2979) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
Constructed Elements
Central Lines: {22, 157}, {5, 182}
Related Centers: X2979 (CENTROID OF DUAL OF THE ORTHIC TRIANGLE), X22 (EXETER POINT), X157 (-OF-TANGENTIAL-TRIANGLE), X5 (NINE-POINT CENTER), X182 (MIDPOINT OF BROCARD DIAMETER)
Trilinears: \(f(a,b,c) : f(b,c,a) : f(c,a,b)\), where \(f(a,b,c) = bc/(b^{4} + c^{4} + b^{2}c^{2} - a^{2}b^{2} - a^{2}c^{2})\)
Barycentrics: \(af(a,b,c) : bf(b,c,a) : cf(c,a,b)\)
Search Value (6, 9, 13): \(-5.780785797148\)