X94

ISOGONAL CONJUGATE OF X50

< 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) { 49, 93 }: Central Line L(49, 93) { 23, 98 }: Central Line L(23, 98) { 4, 143 }: Central Line L(4, 143) { 2, 300 }: Central Line L(2, 300) { 275, 324 }: Central Line L(275, 324) { 96, 925 }: Central Line L(96, 925) A = Vertex A (0.0000, 0.0000) B = Vertex B (1.0000, 0.0000) C = Vertex C (0.6122, 0.5999) X_50 = -CEVA CONJUGATE OF X(184) (2.1559, 2.8368) X_49 = CENTER OF SINE-TRIPLE-ANGLE CIRCLE (0.6275, 0.1789) X_93 = ISOGONAL CONJUGATE OF X(49) (0.5299, 0.2878) X_23 = FAR-OUT POINT (1.3871, 2.4232) X_98 = TARRY POINT (0.8891, -0.2281) X_4 = ORTHOCENTER (0.6122, 0.3958) X_143 = NINE-POINT CENTER OF ORTHIC TRIANGLE (0.6358, 0.3534) X_2 = CENTROID (0.5374, 0.2000) X_300 = ISOTOMIC CONJUGATE OF 1st ISODYNAMIC CENTER (0.5239, 0.2121) X_275 = CEVAPOINT OF ORTHOCENTER AND SYMMEDIAN POINT (0.6057, 0.3473) X_324 = ISOTOMIC CONJUGATE OF X(97) (0.5855, 0.3796) X_96 = ISOGONAL CONJUGATE OF X(52) (-0.0943, -0.0197) X_925 = ANTICOMPLEMENT OF X(136) (0.0074, -0.0312) X_94 = ISOGONAL CONJUGATE OF X(50) (0.9069, -0.1331) A B C X50 X49 X93 X23 X98 X4 X143 X2 X300 X275 X324 X96 X925 X94 (a, b, c) = (5, 6, 7) | AB = 1

X94 (ISOGONAL CONJUGATE OF X50) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).

Constructed Elements

Trilinears: \(\csc 3A : \csc 3B : \csc 3C\)
Barycentrics: \(\sin A \csc 3A : \sin B \csc 3B : \sin C \csc 3C\)
Search Value (6, 9, 13): \(-0.265365586504\)
▸ Alternate Coordinates1 form
  • Barycentrics: \(b^{2} c^{2} / ((a^{2} - b^{2} - c^{2})^{2} - b^{2} c^{2}) : :\)

X94 lies on the Kiepert hyperbola.

▸ Incident Central Lines6 lines

{2, 300}, {4, 143}, {23, 98}, {49, 93}, {96, 925}, {275, 324}

▸ Functional Relations14 relations

Notes

Let A1B1C1 and A2B2C2 be the 1st and 2nd Ehrmann circumscribing triangles. Let A' be the trilinear pole of line A1A2, and define B' and C' cyclically. The lines AA', BB', CC' concur in X94. Let A1'B1'C1' and A2'B2'C2' be the 1st and 2nd Ehrmann inscribed triangles. Then X94 is the radical center of nine-point circles of AA1’A2', BB1’B2', CC1’C2'. (Randy Hutson, June 27, 2018)

Let A'B'C' be the medial or orthic triangle of ABC and A″, B″, C″ the centers of circles {A', X3, X4}}, {B', X3, X4}} and {C', X3, X4}}, respectively. Then A″, B″, C″ are collinear on the trilinear polar of X94. (César Lozada, March 9, 2021).