X2783

ISOGONAL CONJUGATE OF X2699

< A B C >: Reference Triangle △ABC [ A B ]: Sideline AB (Base c = 1) [ B C ]: Sideline BC (Side a) [ C A ]: Sideline CA (Side b) { 11, 114 }: Central Line L(11, 114) { 98, 100 }: Central Line L(98, 100) { 99, 104 }: Central Line L(99, 104) { 115, 119 }: Central Line L(115, 119) { 147, 149 }: Central Line L(147, 149) { 148, 153 }: Central Line L(148, 153) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_2699 = SR(X(98), X(100)) (0.0115, 0.2496) X_11 = FEUERBACH POINT (0.7347, 0.0667) X_114 = KIEPERT ANTIPODE (0.3616, 0.4140) X_98 = TARRY POINT (0.8891, -0.2281) X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666) X_99 = STEINER POINT (0.1109, 0.4322) X_104 = ANTIPODE OF X(100) (0.8571, -0.2624) X_115 = CENTER OF KIEPERT HYPERBOLA (0.7507, 0.0838) X_119 = FEUERBACH ANTIPODE (0.3776, 0.4312) X_147 = TARRY POINT OF ANTICOMPLEMENTARY TRIANGLE (-0.1660, 1.0561) X_149 = REFLECTION OF X(20) IN X(104) (1.3265, -0.3333) X_148 = STEINER POINT OF ANTICOMPLEMENTARY TRIANGLE (1.3904, -0.2646) X_153 = REFLECTION OF X(20) IN X(100) (-0.1020, 1.1248) X_2783 = ISOGONAL CONJUGATE OF X(2699) (0.1079, 0.5998) A B C X2699 X11 X114 X98 X100 X99 X104 X115 X119 X147 X149 X148 X153 X2783 (a, b, c) = (5, 6, 7) | AB = 1

X2783 (ISOGONAL CONJUGATE OF X2699) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

Constructed Elements

Trilinears: \(1/f(a,b,c) : 1/f(b,c,a) : 1/f(c,a,b)\), where f(a,b,c) is as at X2699
Barycentrics: \(a/f(a,b,c) : b/f(b,c,a) : c/f(c,a,b)\)
▸ Incident Central Lines11 lines

{5, 2486}, {11, 114}, {30, 511}, {80, 256}, {98, 100}, {99, 104}, {115, 119}, {147, 149}, {148, 153}, {1284, 1733}, {1764, 1768}

▸ Functional Relations4 relations

Notes

Let Ia be the reflection of X1 in the perpendicular bisector of BC, and define Ib and Ic cyclically; then X2783 = X511-of-IaIbIc; “IaIbIc is the inner Garcia triangle. (Randy Hutson, February 10, 2016)