X1409
X71 -BETH CONJUGATE OF X71
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)
{ 6, 19 }: Central Line L(6, 19)
{ 63, 77 }: Central Line L(63, 77)
{ 71, 73 }: Central Line L(71, 73)
{ 31, 184 }: Central Line L(31, 184)
{ 109, 284 }: Central Line L(109, 284)
{ 48, 577 }: Central Line L(48, 577)
A = Vertex A (0.0000, 0.0000)
B = Vertex B (1.0000, 0.0000)
C = Vertex C (0.6122, 0.5999)
X_71 = ISOGONAL CONJUGATE OF X(27) (0.4807, 0.0915)
X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6000, 0.2672)
X_19 = CLAWSON POINT (0.6246, 0.4244)
X_63 = ISOGONAL CONJUGATE OF X(19) (0.4566, 0.0823)
X_77 = ISOGONAL CONJUGATE OF X(33) (0.5270, 0.1305)
X_73 = CROSSPOINT OF INCENTER AND CIRCUMCENTER (0.5487, 0.1428)
X_31 = 2nd POWER POINT (0.6228, 0.3008)
X_184 = INVERSE OF X(125) IN THE BROCARD CIRCLE (0.5788, 0.1496)
X_109 = Ψ(INCENTER, CIRCUMCENTER) (0.3636, 0.5938)
X_284 = -CROSS CONJUGATE OF X(21) (0.5646, 0.2088)
X_48 = CROSSPOINT OF X(1) AND X(63) (0.5412, 0.1246)
X_577 = HARMONIC OF X(216) (0.4663, 0.0464)
X_1409 = -BETH CONJUGATE OF X(71) (0.5848, 0.1701)
A
B
C
X71
X6
X19
X63
X77
X73
X31
X184
X109
X284
X48
X577
X1409
(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)
{ 6, 19 }: Van Aubel Line
{ 63, 77 }: Central Line L(63, 77)
{ 71, 73 }: Central Line L(71, 73)
{ 31, 184 }: Central Line L(31, 184)
{ 109, 284 }: Central Line L(109, 284)
{ 48, 577 }: Central Line L(48, 577)
A = Vertex A (0.0000, 0.0000)
B = Vertex B (1.0000, 0.0000)
C = Vertex C (0.6400, 0.4800)
X_71 = ISOGONAL CONJUGATE OF X(27) (0.4706, 0.0000)
X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6400, 0.2400)
X_19 = CLAWSON POINT (0.6400, 0.4800)
X_63 = ISOGONAL CONJUGATE OF X(19) (0.4286, 0.0000)
X_77 = ISOGONAL CONJUGATE OF X(33) (0.5294, 0.0000)
X_73 = CROSSPOINT OF INCENTER AND CIRCUMCENTER (0.5714, 0.0000)
X_31 = 2nd POWER POINT (0.6667, 0.2778)
X_184 = INVERSE OF X(125) IN THE BROCARD CIRCLE (0.6400, 0.0000)
X_109 = Ψ(INCENTER, CIRCUMCENTER) (0.5000, 0.5000)
X_284 = -CROSS CONJUGATE OF X(21) (0.5946, 0.1622)
X_48 = CROSSPOINT OF X(1) AND X(63) (0.5714, 0.0000)
X_577 = HARMONIC OF X(216) (0.5000, 0.0000)
X_1409 = -BETH CONJUGATE OF X(71) (0.6400, 0.0000)
A
B
C
X71
X6
X19
X63
X77
X73
X31
X184
X109
X284
X48
X577
X1409
(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)
{ 6, 19 }: Van Aubel Line
{ 63, 77 }: Central Line L(63, 77)
{ 71, 73 }: Central Line L(71, 73)
{ 31, 184 }: Central Line L(31, 184)
{ 109, 284 }: Central Line L(109, 284)
{ 48, 577 }: Central Line L(48, 577)
A = Vertex A (0.0000, 0.0000)
B = Vertex B (1.0000, 0.0000)
C = Vertex C (0.6180, 0.4859)
X_71 = ISOGONAL CONJUGATE OF X(27) (0.4753, 0.0000)
X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6180, 0.2429)
X_19 = CLAWSON POINT (0.6180, 0.4859)
X_63 = ISOGONAL CONJUGATE OF X(19) (0.4401, 0.0000)
X_77 = ISOGONAL CONJUGATE OF X(33) (0.5247, 0.0000)
X_73 = CROSSPOINT OF INCENTER AND CIRCUMCENTER (0.5599, 0.0000)
X_31 = 2nd POWER POINT (0.6411, 0.2822)
X_184 = INVERSE OF X(125) IN THE BROCARD CIRCLE (0.6180, 0.0000)
X_109 = Ψ(INCENTER, CIRCUMCENTER) (0.5000, 0.5000)
X_284 = -CROSS CONJUGATE OF X(21) (0.5794, 0.1635)
X_48 = CROSSPOINT OF X(1) AND X(63) (0.5599, 0.0000)
X_577 = HARMONIC OF X(216) (0.5000, 0.0000)
X_1409 = -BETH CONJUGATE OF X(71) (0.6180, 0.0000)
A
B
C
X71
X6
X19
X63
X77
X73
X31
X184
X109
X284
X48
X577
X1409
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)
{ 6, 19 }: Central Line L(6, 19)
{ 63, 77 }: Central Line L(63, 77)
{ 71, 73 }: Central Line L(71, 73)
{ 31, 184 }: Central Line L(31, 184)
{ 109, 284 }: Central Line L(109, 284)
{ 48, 577 }: Central Line L(48, 577)
A = Vertex A (0.0000, 0.0000)
B = Vertex B (1.0000, 0.0000)
C = Vertex C (0.6331, 0.2801)
X_71 = ISOGONAL CONJUGATE OF X(27) (0.4699, -0.1616)
X_6 = SYMMEDIAN POINT (LEMOINE POINT, GREBE POINT) (0.6573, 0.1655)
X_19 = CLAWSON POINT (0.5737, 0.4687)
X_63 = ISOGONAL CONJUGATE OF X(19) (0.3991, -0.1098)
X_77 = ISOGONAL CONJUGATE OF X(33) (0.7007, 0.6477)
X_73 = CROSSPOINT OF INCENTER AND CIRCUMCENTER (0.6250, 0.5094)
X_31 = 2nd POWER POINT (0.6747, 0.1958)
X_184 = INVERSE OF X(125) IN THE BROCARD CIRCLE (0.3215, 1.0549)
X_109 = Ψ(INCENTER, CIRCUMCENTER) (0.6048, 0.2861)
X_284 = -CROSS CONJUGATE OF X(21) (0.6229, 0.0691)
X_48 = CROSSPOINT OF X(1) AND X(63) (0.8073, -1.4298)
X_577 = HARMONIC OF X(216) (0.6307, 0.0911)
X_1409 = -BETH CONJUGATE OF X(71) (0.5965, 0.3861)
A
B
C
X71
X6
X19
X63
X77
X73
X31
X184
X109
X284
X48
X577
X1409
Kimberling (6, 9, 13) | AB = 1
X1409 (X71 -BETH CONJUGATE OF X71 ) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\) .
Trilinears: \(a(\sec B + \sec C) : :\)
Search Value (6, 9, 13): \(-0.806655598856\)
▸ Alternate Coordinates1 form
▸ Incident Central Lines11 lines
{6 , 19 }, {31 , 184 }, {48 , 577 }, {63 , 77 }, {71 , 73 }, {109 , 284 }, {213 , 1042 }, {217 , 1404 }, {287 , 651 }, {800 , 1195 }, {1333 , 1399 }
▸ Functional Relations13 relations
X1409 = isogonal conjugate of X31623
X1409 = complement of anticomplementary conjugate of X18667
X1409 = anticomplement of complementary conjugate of X18592
X1409 = X63 -isoconjugate of X1896
X1409 = crossdifference of every pair of points on line X521 X1948
X1409 = Xi -Ceva conjugate of Xj for these (i,j): (6 , 1400 ), (65 , 1402 ), (73 , 228 ), (222 , 73 )
X1409 = crosspoint of Xi and Xj for these (i,j): (6 , 48 ), (65 , 1214 ), (222 , 603 )
X1409 = crosssum of Xi and Xj for these (i,j): (2 , 92 ), (21 , 1172 ), (281 , 318 )
X1409 = X92 -isoconjugate of X21
X1409 = bicentric sum of PU(19)
X1409 = PU(19)-harmonic conjugate of X1946
X1409 = barycentric product of PU(83)
X1409 = polar conjugate of isotomic conjugate of X22341
Notes
Let V = isotomic conjugate of polar conjugate of line X1 X3 and W = polar conjugate of isotomic conjugate of line X1 X3 ; then X1409 = V∩W. (Randy Hutson , December 26, 2015)