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Exeter point

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679: 72: 458: 722: 305: 668: 740: 628: 761: 489: 714: 745: 621: 614: 44: 653: 766: 839: 787: 733: 60: 678: 637: 48: 544: 51:
in 1986. This is one of the recent triangle centers, unlike the classical triangle centers like
519: 297: 8: 485: 226: 141: 818: 813: 196: 92: 273: 40: 32: 588: 803: 658: 566: 453:{\displaystyle a(b^{4}+c^{4}-a^{4}):b(c^{4}+a^{4}-b^{4}):c(a^{4}+b^{4}-c^{4})} 833: 493: 204: 112: 606: 782: 694: 481: 663: 473: 264:
be the vertex opposite to the side formed by the tangent at the vertex
256:
be the vertex opposite to the side formed by the tangent at the vertex
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be the vertex opposite to the side formed by the tangent at the vertex
477: 103: 56: 52: 28: 20: 230: 47:. This was discovered in a computers-in-mathematics workshop at 71: 700: 500:. So there are 6 points collinear over one only line. 308: 134:
formed by intersection of medians with circumcircle
452: 831: 622: 636: 27:is a special point associated with a plane 746:List of Phillips Exeter Academy principals 629: 615: 520:"Encyclopedia of Triangle Centers: X(22)" 184:The Exeter point is defined as follows. 591:. From MathWorld--A Wolfram Web Resource 538: 536: 291: 70: 832: 715:List of Phillips Exeter Academy alumni 564: 542: 517: 610: 586: 533: 13: 276:. The point of concurrence is the 14: 851: 677: 162: Lines joining vertices of 45:Encyclopedia of Triangle Centers 654:Phillips Exeter Academy Library 195:be any given triangle. Let the 669:Front Street Historic District 580: 558: 511: 476:(the line passing through the 447: 408: 399: 360: 351: 312: 1: 504: 468:The Exeter point of triangle 462: 66: 7: 10: 856: 796: 788:Eight Schools Association 775: 754: 721: 709: 686: 675: 646: 79: Reference triangle 300:of the Exeter point are 639:Phillips Exeter Academy 237:to the circumcircle of 49:Phillips Exeter Academy 767:Andover–Exeter rivalry 736:and Elizabeth Phillips 454: 181: 687:Student organizations 455: 298:trilinear coordinates 292:Trilinear coordinates 268:.) The lines through 199:through the vertices 74: 35:and is designated as 306: 587:Weisstein, Eric W. 565:Kimberling, Clark. 543:Kimberling, Clark. 518:Kimberling, Clark. 486:de Longchamps point 142:Tangential triangle 819:Advanced Placement 814:School Year Abroad 567:"Triangle centers" 450: 218:respectively. Let 182: 827: 826: 847: 840:Triangle centers 725: 681: 640: 631: 624: 617: 608: 607: 601: 600: 598: 596: 584: 578: 577: 575: 573: 562: 556: 555: 553: 551: 540: 531: 530: 528: 526: 515: 459: 457: 456: 451: 446: 445: 433: 432: 420: 419: 398: 397: 385: 384: 372: 371: 350: 349: 337: 336: 324: 323: 286: 271: 267: 263: 259: 255: 251: 247: 243: 236: 224: 217: 213: 202: 194: 175: 168: 161: 156: 149: 139: 133: 126: 121: 110: 101: 90: 85: 78: 41:Clark Kimberling 855: 854: 850: 849: 848: 846: 845: 844: 830: 829: 828: 823: 792: 771: 750: 723: 717: 705: 682: 673: 642: 638: 635: 605: 604: 594: 592: 585: 581: 571: 569: 563: 559: 549: 547: 541: 534: 524: 522: 516: 512: 507: 465: 441: 437: 428: 424: 415: 411: 393: 389: 380: 376: 367: 363: 345: 341: 332: 328: 319: 315: 307: 304: 303: 294: 281: 269: 265: 261: 257: 253: 249: 245: 238: 234: 219: 215: 208: 200: 189: 180: 170: 163: 159: 157: 151: 144: 137: 135: 128: 127: Triangle 124: 122: 116: 108: 106: 96: 88: 86: 80: 76: 69: 33:triangle center 17: 16:Triangle center 12: 11: 5: 853: 843: 842: 825: 824: 822: 821: 816: 811: 806: 804:Harkness table 800: 798: 794: 793: 791: 790: 785: 779: 777: 773: 772: 770: 769: 764: 758: 756: 752: 751: 749: 748: 743: 741:William Rawson 737: 729: 727: 719: 718: 713: 711: 707: 706: 704: 703: 698: 690: 688: 684: 683: 676: 674: 672: 671: 666: 661: 659:Lamont Gallery 656: 650: 648: 644: 643: 634: 633: 626: 619: 611: 603: 602: 589:"Exeter Point" 579: 557: 545:"Exeter Point" 532: 509: 508: 506: 503: 502: 501: 496:) of triangle 464: 461: 449: 444: 440: 436: 431: 427: 423: 418: 414: 410: 407: 404: 401: 396: 392: 388: 383: 379: 375: 370: 366: 362: 359: 356: 353: 348: 344: 340: 335: 331: 327: 322: 318: 314: 311: 293: 290: 289: 288: 229:formed by the 158: 136: 123: 107: 87: 75: 68: 65: 15: 9: 6: 4: 3: 2: 852: 841: 838: 837: 835: 820: 817: 815: 812: 810: 807: 805: 802: 801: 799: 795: 789: 786: 784: 781: 780: 778: 774: 768: 765: 763: 760: 759: 757: 753: 747: 744: 742: 738: 735: 734:John Phillips 731: 730: 728: 726: 720: 716: 712: 708: 702: 699: 697: 696: 692: 691: 689: 685: 680: 670: 667: 665: 662: 660: 657: 655: 652: 651: 649: 645: 641: 632: 627: 625: 620: 618: 613: 612: 609: 590: 583: 568: 561: 546: 539: 537: 521: 514: 510: 499: 495: 491: 487: 483: 479: 475: 471: 467: 466: 460: 442: 438: 434: 429: 425: 421: 416: 412: 405: 402: 394: 390: 386: 381: 377: 373: 368: 364: 357: 354: 346: 342: 338: 333: 329: 325: 320: 316: 309: 301: 299: 285: 279: 275: 270:DA', EB', FC' 242: 232: 228: 223: 212: 206: 198: 193: 187: 186: 185: 179: 174: 167: 155: 148: 143: 132: 120: 114: 105: 100: 94: 84: 73: 64: 62: 61:Steiner point 58: 54: 50: 46: 42: 38: 34: 30: 26: 22: 809:Exeter point 808: 776:Affiliations 693: 593:. Retrieved 582: 570:. Retrieved 560: 548:. Retrieved 523:. Retrieved 513: 497: 494:circumcenter 490:Euler centre 472:lies on the 469: 302: 295: 283: 278:Exeter point 277: 240: 227:the triangle 221: 210: 205:circumcircle 191: 183: 178:Exeter point 177: 176:; concur at 172: 165: 153: 146: 130: 118: 113:Circumcircle 102:; concur at 98: 82: 36: 25:Exeter point 24: 18: 783:G30 Schools 695:The Exonian 482:orthocenter 739:Principal 664:Exeter Inn 505:References 474:Euler line 463:Properties 274:concurrent 216:A', B', C' 67:Definition 31:. It is a 755:Athletics 732:Founders 435:− 387:− 339:− 203:meet the 834:Category 492:and the 478:centroid 231:tangents 104:centroid 57:incenter 53:centroid 39:(22) in 29:triangle 21:geometry 724:Faculty 244:. (Let 235:A, B, C 201:A, B, C 197:medians 173:A'B'C' 131:A'B'C' 93:Medians 762:NEPSAC 710:Alumni 647:Campus 595:24 May 572:24 May 550:24 May 525:24 May 488:, the 484:, the 480:, the 260:, and 160:  140:  138:  125:  111:  109:  91:  89:  77:  59:, and 23:, the 797:Misc. 701:WPEA 597:2012 574:2012 552:2012 527:2012 296:The 272:are 188:Let 169:and 498:ABC 470:ABC 284:ABC 280:of 241:ABC 233:at 225:be 222:DEF 214:at 211:ABC 207:of 192:ABC 166:DEF 154:ABC 150:of 147:DEF 119:ABC 115:of 99:ABC 95:of 83:ABC 43:'s 19:In 836:: 535:^ 252:, 63:. 55:, 630:e 623:t 616:v 599:. 576:. 554:. 529:. 448:) 443:4 439:c 430:4 426:b 422:+ 417:4 413:a 409:( 406:c 403:: 400:) 395:4 391:b 382:4 378:a 374:+ 369:4 365:c 361:( 358:b 355:: 352:) 347:4 343:a 334:4 330:c 326:+ 321:4 317:b 313:( 310:a 287:. 282:△ 266:C 262:F 258:B 254:E 250:A 246:D 239:△ 220:△ 209:△ 190:△ 171:△ 164:△ 152:△ 145:△ 129:△ 117:△ 97:△ 81:△ 37:X

Index

geometry
triangle
triangle center
Clark Kimberling
Encyclopedia of Triangle Centers
Phillips Exeter Academy
centroid
incenter
Steiner point

Medians
centroid
Circumcircle
Tangential triangle
medians
circumcircle
the triangle
tangents
concurrent
trilinear coordinates
Euler line
centroid
orthocenter
de Longchamps point
Euler centre
circumcenter
"Encyclopedia of Triangle Centers: X(22)"


"Exeter Point"

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