X693
ISOTOMIC CONJUGATE OF X100
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)
{ 2, 650 }: Central Line L(2, 650)
{ 320, 350 }: Central Line L(320, 350)
{ 325, 523 }: Central Line L(325, 523)
{ 514, 661 }: Central Line L(514, 661)
{ 76, 764 }: Central Line L(76, 764)
{ 100, 927 }: Central Line L(100, 927)
A = Vertex A (0.0000, 0.0000)
B = Vertex B (1.0000, 0.0000)
C = Vertex C (0.6122, 0.5999)
X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.1429, 0.4666)
X_2 = CENTROID (0.5374, 0.2000)
X_650 = CROSSDIFFERENCE OF X(1) AND X(3) (13.7143, -4.1991)
X_320 = ISOTOMIC CONJUGATE OF X(80) (-2.6735, -3.5993)
X_350 = -HIRST INVERSE OF X(75) (-3.5227, -3.1370)
X_325 = -HIRST INVERSE OF X(69) (-0.3370, -0.7398)
X_523 = ISOGONAL CONJUGATE OF X(110) (1.0856, -0.0096)
X_514 = ISOGONAL CONJUGATE OF X(101) (1.0761, -0.0329)
X_661 = CROSSDIFFERENCE OF X(1) AND X(21) (48.4286, -23.0952)
X_76 = 3rd BROCARD POINT (0.4567, 0.1388)
X_764 = TRILINEAR CUBE OF X(513) (1.2143, -0.1166)
X_927 = ISOGONAL CONJUGATE OF X(926) (1.0037, 0.1836)
X_693 = ISOTOMIC CONJUGATE OF X(100) (-25.8163, 8.9981)
A
B
C
X100
X2
X650
X320
X350
X325
X523
X514
X661
X76
X764
X927
X693
(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)
{ 2, 650 }: Central Line L(2, 650)
{ 320, 350 }: Central Line L(320, 350)
{ 325, 523 }: Central Line L(325, 523)
{ 514, 661 }: Central Line L(514, 661)
{ 76, 764 }: Central Line L(76, 764)
{ 100, 927 }: Central Line L(100, 927)
A = Vertex A (0.0000, 0.0000)
B = Vertex B (1.0000, 0.0000)
C = Vertex C (0.6400, 0.4800)
X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.2000, 0.4000)
X_2 = CENTROID (0.5467, 0.1600)
X_650 = CROSSDIFFERENCE OF X(1) AND X(3) (6.4000, -1.2000)
X_320 = ISOTOMIC CONJUGATE OF X(80) (-1.5600, -1.9200)
X_350 = -HIRST INVERSE OF X(75) (-2.3437, -1.5282)
X_325 = -HIRST INVERSE OF X(69) (-0.0578, -0.3581)
X_523 = ISOGONAL CONJUGATE OF X(110) (1.0987, -0.0010)
X_514 = ISOGONAL CONJUGATE OF X(101) (1.0889, -0.0314)
X_661 = CROSSDIFFERENCE OF X(1) AND X(21) (20.8000, -8.4000)
X_76 = 3rd BROCARD POINT (0.4124, 0.0899)
X_764 = TRILINEAR CUBE OF X(513) (1.2000, -0.1000)
X_927 = ISOGONAL CONJUGATE OF X(926) (0.9394, 0.2386)
X_693 = ISOTOMIC CONJUGATE OF X(100) (-11.1600, 2.8800)
A
B
C
X100
X2
X650
X320
X350
X325
X523
X514
X661
X76
X764
X927
X693
(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)
{ 2, 650 }: Central Line L(2, 650)
{ 320, 350 }: Central Line L(320, 350)
{ 325, 523 }: Central Line L(325, 523)
{ 514, 661 }: Central Line L(514, 661)
{ 76, 764 }: Central Line L(76, 764)
{ 100, 927 }: Central Line L(100, 927)
A = Vertex A (0.0000, 0.0000)
B = Vertex B (1.0000, 0.0000)
C = Vertex C (0.6180, 0.4859)
X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.2386, 0.4263)
X_2 = CENTROID (0.5393, 0.1620)
X_650 = CROSSDIFFERENCE OF X(1) AND X(3) (7.5663, -1.2021)
X_320 = ISOTOMIC CONJUGATE OF X(80) (-1.4042, -2.1471)
X_350 = -HIRST INVERSE OF X(75) (-2.2720, -1.7862)
X_325 = -HIRST INVERSE OF X(69) (0.0000, -0.3931)
X_523 = ISOGONAL CONJUGATE OF X(110) (1.0981, 0.0262)
X_514 = ISOGONAL CONJUGATE OF X(101) (1.0910, -0.0001)
X_661 = CROSSDIFFERENCE OF X(1) AND X(21) (24.7569, -8.3524)
X_76 = 3rd BROCARD POINT (0.4271, 0.0928)
X_764 = TRILINEAR CUBE OF X(513) (1.2380, -0.0699)
X_927 = ISOGONAL CONJUGATE OF X(926) (0.8931, 0.3090)
X_693 = ISOTOMIC CONJUGATE OF X(100) (-13.5145, 2.8901)
A
B
C
X100
X2
X650
X320
X350
X325
X523
X514
X661
X76
X764
X927
X693
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)
{ 2, 650 }: Central Line L(2, 650)
{ 320, 350 }: Central Line L(320, 350)
{ 325, 523 }: Central Line L(325, 523)
{ 514, 661 }: Central Line L(514, 661)
{ 76, 764 }: Central Line L(76, 764)
{ 100, 927 }: Central Line L(100, 927)
A = Vertex A (0.0000, 0.0000)
B = Vertex B (1.0000, 0.0000)
C = Vertex C (0.6331, 0.2801)
X_100 = ANTICOMPLEMENT OF FEUERBACH POINT (0.3206, 0.2669)
X_2 = CENTROID (0.5444, 0.0934)
X_650 = CROSSDIFFERENCE OF X(1) AND X(3) (3.4560, -0.1300)
X_320 = ISOTOMIC CONJUGATE OF X(80) (-0.5706, -0.8023)
X_350 = -HIRST INVERSE OF X(75) (-1.3735, -0.5734)
X_325 = -HIRST INVERSE OF X(69) (0.2079, -0.1215)
X_523 = ISOGONAL CONJUGATE OF X(110) (1.1957, 0.0148)
X_514 = ISOGONAL CONJUGATE OF X(101) (1.1917, -0.0133)
X_661 = CROSSDIFFERENCE OF X(1) AND X(21) (9.8407, -1.9504)
X_76 = 3rd BROCARD POINT (0.3495, 0.0360)
X_764 = TRILINEAR CUBE OF X(513) (1.2180, -0.0418)
X_927 = ISOGONAL CONJUGATE OF X(926) (0.7313, 0.2468)
X_693 = ISOTOMIC CONJUGATE OF X(100) (-5.2790, 0.5401)
A
B
C
X100
X2
X650
X320
X350
X325
X523
X514
X661
X76
X764
X927
X693
Kimberling (6, 9, 13) | AB = 1
X693 (ISOTOMIC CONJUGATE OF X100 ) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\) .
Trilinears: \((b - c)/a^{2} : (c - a)/b^{2} : (a - b)/c^{2}\)
Barycentrics: \((b - c)/a : (c - a)/b : (a - b)/c\)
Search Value (6, 9, 13): \(43.948021245883\)
▸ Alternate Coordinates2 forms
▸ Incident Central Lines8 lines
{2 , 650 }, {76 , 764 }, {100 , 927 }, {320 , 350 }, {321 , 824 }, {325 , 523 }, {514 , 661 }, {649 , 812 }
▸ Functional Relations14 relations
X693 = isogonal conjugate of X692
X693 = isotomic conjugate of X100
X693 = complement of X17494
X693 = anticomplement of X650
X693 = cevapoint of X2 and X149
X693 = Xi -cross conjugate of Xj for these (i,j): (11 , 2 ), (523 , 514 )
X693 = crosssum of Xi and Xj for these (i,j): (31 , 667 ), (42 , 663 ), (649 , 1475 )
X693 = crossdifference of every pair of points on line X31 X32
X693 = trilinear pole of line X918 X1086
X693 = pole wrt polar circle of trilinear polar of X1783 (line X19 X25 )
X693 = polar conjugate of X1783
X693 = X6 -isoconjugate of X101
X693 = complement of polar conjugate of isogonal conjugate of X22160
X693 = perspector of side- and vertex-triangles of Gemini triangles 29 and 30
Notes
X693 : Let A29 B29 C29 and A30 B30 C30 be Gemini triangles 29 and 30, resp. Let E29 and E30 be the {ABC , Gemini 29}-circumconic and {ABC , Gemini 30}-circumconic, resp. Let A' be the intersection of the tangent to E29 at A29 and the tangent to E30 at A30 . Define B' and C' cyclically. The lines AA' , BB' , CC″ concur in X693 . (Randy Hutson , January 15, 2019)