X934¶
X513-CROSS CONJUGATE OF X57
X934 (X513-CROSS CONJUGATE OF X57) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
Constructed Elements
Central Lines: {972, 3}
Related Centers: X972 (ISOGONAL CONJUGATE OF X971), X3 (CIRCUMCENTER)
Alternate Coordinates1 form
Trilinears: \(1/[(b - c)(b + c - a)^{2}] : :\)
X934 lies on the circumcircle.
Incident Central Lines13 lines
Functional Relations20 relations
X934 = isogonal conjugate of X3900
X934 = isotomic conjugate of X4397
X934 = perspector of ABC and triangle formed by line X3X9 reflected in sides of ABC
X934 = concurrence of reflections in sides of ABC of line X4X7
X934 = Λ(X650, X663) (Λ(trilinear polar of X9)
X934 = trilinear pole of line X6X57
X934 = polar-circle-inverse of X38966
X934 = X2-Ceva conjugate of X23971
X934 = trilinear pole, wrt circumtangential triangle, of line X3X9
X934 = trilinear product of intercepts of circumcircle and Soddy line
X934 = eigencenter of 4th mixtilinear triangle
X934 = intersection of antipedal lines of circumcircle intercepts of line X3X9
Notes¶
Let P be a point on line X4X7 other than X4. Let A' be the reflection of P in BC, and define B' and C' cyclically. The circumcircles of AA'B', BC'A', and CA'B' concur at X934. (Randy Hutson, July 20, 2016)