X502¶
ISOGONAL CONJUGATE OF X501
X502 (ISOGONAL CONJUGATE OF X501) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
Constructed Elements
Central Lines: {10, 191}, {594, 3678}
Related Centers: X1 (INCENTER), X10 (SPIEKER CENTER), X191 (-CEVA CONJUGATE OF X1), X594 (ISOGONAL CONJUGATE OF X593), X3678 (com(EXTOUCH TRIANGLE))
Trilinears: \(f(a,b,c) : f(b,c,a) : f(c,a,b)\), where \(f(a,b,c) = bc(b + c)/[a^{3} - b^{3} - c^{3} - bc(a + b + c) + ab(a - b) + ac(a - c)]\)
Barycentrics: \(af(a,b,c) : bf(b,c,a) : cf(c,a,b)\)
Search Value (6, 9, 13): \(-2.150446441377\)
Incident Central Lines7 lines
Notes¶
Let IaIbIc be the incentral triangle. Let BCA″ be the triangle similar to IaIbIc such that the segment AA″ crosses the line BC. Define B″ and C″ cyclically. The lines AA″, BB″, CC″ concur in X502. (Randy Hutson, 9/23/2011)