X94
ISOGONAL CONJUGATE OF X50
5, 6, 7
3, 4, 5
Kepler
Kimberling
< 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
< 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)
{ 96, 925 }: Central Line L(96, 925)
A = Vertex A (0.0000, 0.0000)
B = Vertex B (1.0000, 0.0000)
C = Vertex C (0.6400, 0.4800)
X_50 = -CEVA CONJUGATE OF X(184) (2.2857, 3.0612)
X_49 = CENTER OF SINE-TRIPLE-ANGLE CIRCLE (0.7800, 0.0000)
X_93 = ISOGONAL CONJUGATE OF X(49) (0.6400, 0.4800)
X_23 = FAR-OUT POINT (0.9200, 1.4400)
X_98 = TARRY POINT (0.8489, -0.3581)
X_4 = ORTHOCENTER (0.6400, 0.4800)
X_143 = NINE-POINT CENTER OF ORTHIC TRIANGLE (0.7120, 0.2331)
X_2 = CENTROID (0.5467, 0.1600)
X_300 = ISOTOMIC CONJUGATE OF 1st ISODYNAMIC CENTER (0.5239, 0.1906)
X_96 = ISOGONAL CONJUGATE OF X(52) (1.7371, 0.1600)
X_925 = ANTICOMPLEMENT OF X(136) (0.3600, -0.4800)
X_94 = ISOGONAL CONJUGATE OF X(50) (0.8532, -0.2508)
A
B
C
X50
X49
X93
X23
X98
X4
X143
X2
X300
X96
X925
X94
(a, b, c) = (3, 4, 5) | AB = 1
< 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)
{ 96, 925 }: Central Line L(96, 925)
A = Vertex A (0.0000, 0.0000)
B = Vertex B (1.0000, 0.0000)
C = Vertex C (0.6180, 0.4859)
X_50 = -CEVA CONJUGATE OF X(184) (2.6180, 4.3593)
X_49 = CENTER OF SINE-TRIPLE-ANGLE CIRCLE (0.7361, 0.0000)
X_93 = ISOGONAL CONJUGATE OF X(49) (0.6180, 0.4859)
X_23 = FAR-OUT POINT (0.8541, 1.4576)
X_98 = TARRY POINT (0.8090, -0.3931)
X_4 = ORTHOCENTER (0.6180, 0.4859)
X_143 = NINE-POINT CENTER OF ORTHIC TRIANGLE (0.6491, 0.3580)
X_2 = CENTROID (0.5393, 0.1620)
X_300 = ISOTOMIC CONJUGATE OF 1st ISODYNAMIC CENTER (0.5208, 0.1942)
X_96 = ISOGONAL CONJUGATE OF X(52) (1.9514, 0.1620)
X_925 = ANTICOMPLEMENT OF X(136) (0.3820, -0.4859)
X_94 = ISOGONAL CONJUGATE OF X(50) (0.8111, -0.3087)
A
B
C
X50
X49
X93
X23
X98
X4
X143
X2
X300
X96
X925
X94
Kepler (1, √φ, φ) | AB = 1
< 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 (0.6331, 0.2801)
X_50 = -CEVA CONJUGATE OF X(184) (0.5919, -0.0176)
X_49 = CENTER OF SINE-TRIPLE-ANGLE CIRCLE (0.4207, 0.3163)
X_93 = ISOGONAL CONJUGATE OF X(49) (-1.9471, 0.4523)
X_23 = FAR-OUT POINT (0.6051, 0.5970)
X_98 = TARRY POINT (0.7487, -0.7881)
X_4 = ORTHOCENTER (0.6331, 0.8294)
X_143 = NINE-POINT CENTER OF ORTHIC TRIANGLE (0.6356, 0.2874)
X_2 = CENTROID (0.5444, 0.0934)
X_300 = ISOTOMIC CONJUGATE OF 1st ISODYNAMIC CENTER (0.6165, 0.2600)
X_275 = CEVAPOINT OF ORTHOCENTER AND SYMMEDIAN POINT (1.6919, 0.0632)
X_324 = ISOTOMIC CONJUGATE OF X(97) (0.7058, 0.2879)
X_96 = ISOGONAL CONJUGATE OF X(52) (1.1396, 0.0192)
X_925 = ANTICOMPLEMENT OF X(136) (0.7747, 0.2253)
X_94 = ISOGONAL CONJUGATE OF X(50) (0.6355, 0.3039)
A
B
C
X50
X49
X93
X23
X98
X4
X143
X2
X300
X275
X324
X96
X925
X94
Kimberling (6, 9, 13) | AB = 1
X94 (ISOGONAL CONJUGATE OF X50 ) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\) .
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
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
X94 = isogonal conjugate of X50
X94 = isotomic conjugate of X323
X94 = anticomplement of X34834
X94 = cevapoint of X49 and X50
X94 = Xi -cross conjugate of Xj for these (i,j): (30 , 264 ), (50 , 93 ), (265 , 328 )
X94 = X300 -Hirst inverse of X301
X94 = trilinear pole of PU(5) (line X5 X523 )
X94 = pole wrt polar circle of trilinear polar of X186
X94 = X48 -isoconjugate (polar conjugate) of X186
X94 = barycentric product X476 *X850
X94 = trilinear pole of PU(173)
X94 = trilinear product X74 *X107 (circumcircle-X4 antipodes)
X94 = barycentric quotient X476 /X110
X94 = intersection of the tangent to hyperbola {A , B , C ,X6 ,X13 ,X16 }} at X13 and the tangent to hyperbola {A , B , C ,X6 ,X14 ,X15 }} at X14
Notes
Let A1 B1 C1 and A2 B2 C2 be the 1st and 2nd Ehrmann circumscribing triangles. Let A' be the trilinear pole of line A1 A2 , 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).