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Ditrigonal polyhedron

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having a symmetry of order 3 (triangular symmetry) acting with 2 rotational orbits on the 6 angles of the vertex figure (the word
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Philosophical Transactions of the Royal Society of London. Series A. Mathematical and Physical Sciences
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There are five uniform ditrigonal polyhedra, all with icosahedral symmetry.
543: 20:, there are seven uniform and uniform dual polyhedra named as ditrigonal. 641: 82: 78: 17: 946: 464: 126: 559: 77:
are not 2. Each polyhedron includes two types of faces, being of
125:) with a symmetry of order 3. Here, term ditrigonal refers to a 588: 522:
Skilling, J. (1975), "The complete set of uniform polyhedra",
584: 135: 926: 897: 862: 810: 751: 690: 629: 516:, Ph.D. Dissertation, University of Toronto, 1966 514:The Theory of Uniform Polytopes and Honeycombs 600: 394:great ditrigonal dodecacronic hexecontahedron 390:small ditrigonal dodecacronic hexecontahedron 8: 607: 593: 585: 487:, Geometriae Dedicata 47, 57–110, 1993. 435: 433: 431: 484:Uniform Solution for Uniform Polyhedra. 427: 383:great ditrigonal dodecicosidodecahedron 379:small ditrigonal dodecicosidodecahedron 133:means "having two sets of 3 angles"). 471:and J.C.P Miller, Uniform Polyhedra, 7: 451:, Mathworld (retrieved 10 June 2016) 624:Listed by number of faces and type 373:Other uniform ditrigonal polyhedra 153:Great ditrigonal icosidodecahedron 143:Small ditrigonal icosidodecahedron 14: 388:Their duals are respectively the 362: 355: 348: 204: 197: 190: 176: 169: 162: 411:Great complex icosidodecahedron 406:Small complex icosidodecahedron 1: 835:(two infinite groups and 75) 148:Ditrigonal dodecadodecahedron 853:(two infinite groups and 50) 341: 325: 285: 211: 183: 157: 69:are ditrigonal, at least if 1004: 905:Kepler–Poinsot polyhedron 622: 24:Ditrigonal vertex figures 478:(1954) pp. 401–450. 917:Uniform star polyhedron 845:quasiregular polyhedron 33:uniform star polyhedron 851:semiregular polyhedron 544:10.1098/rsta.1975.0022 898:non-convex polyhedron 91:vertex configurations 469:M.S. Longuet-Higgins 214:Vertex configuration 536:1975RSPTA.278..111S 839:regular polyhedron 833:uniform polyhedron 795:Hectotriadiohedron 449:Uniform Polyhedron 385:are also uniform. 975: 974: 876:Archimedean solid 863:convex polyhedron 771:Icosidodecahedron 530:(1278): 111–135, 370: 369: 995: 811:elemental things 789:Enneacontahedron 759:Icositetrahedron 609: 602: 595: 586: 578: 493:Kaleido software 452: 446: 440: 437: 366: 359: 352: 316: 315: 311: 301: 300: 296: 282:(3.5.3.5.3.5)/2 279: 278: 274: 269: 268: 264: 259: 258: 254: 247: 246: 242: 237: 236: 232: 227: 226: 222: 208: 201: 194: 180: 173: 166: 136: 93:are of the form 61: 59: 58: 55: 52: 39:of the form 3 | 1003: 1002: 998: 997: 996: 994: 993: 992: 978: 977: 976: 971: 922: 911:Star polyhedron 893: 858: 806: 783:Hexecontahedron 765:Triacontahedron 747: 738:Enneadecahedron 728:Heptadecahedron 718:Pentadecahedron 713:Tetradecahedron 686: 625: 618: 613: 582: 521: 509: 507:Further reading 465:Coxeter, H.S.M. 461: 456: 455: 447: 443: 438: 429: 424: 419: 402: 375: 344:Coxeter diagram 338:3 | 3/2 5 335:3 | 5/3 5 332:3 | 5/2 3 322:20 {3}, 12 {5} 321: 313: 309: 308: 306: 298: 294: 293: 291: 276: 272: 271: 266: 262: 261: 256: 252: 251: 244: 240: 239: 234: 230: 229: 224: 220: 219: 56: 53: 50: 49: 47: 26: 12: 11: 5: 1001: 999: 991: 990: 980: 979: 973: 972: 970: 969: 967:parallelepiped 964: 959: 954: 949: 944: 939: 933: 931: 924: 923: 921: 920: 914: 908: 901: 899: 895: 894: 892: 891: 885: 879: 873: 870:Platonic solid 866: 864: 860: 859: 857: 856: 855: 854: 848: 842: 830: 825: 820: 814: 812: 808: 807: 805: 804: 798: 792: 786: 780: 774: 768: 762: 755: 753: 749: 748: 746: 745: 740: 735: 733:Octadecahedron 730: 725: 723:Hexadecahedron 720: 715: 710: 705: 700: 694: 692: 688: 687: 685: 684: 679: 674: 669: 664: 659: 654: 649: 644: 639: 633: 631: 627: 626: 623: 620: 619: 614: 612: 611: 604: 597: 589: 580: 579: 519: 508: 505: 504: 503: 479: 460: 457: 454: 453: 441: 426: 425: 423: 420: 418: 415: 414: 413: 408: 401: 398: 374: 371: 368: 367: 360: 353: 346: 340: 339: 336: 333: 330: 328:Wythoff symbol 324: 323: 318: 303: 288: 284: 283: 280: 248: 216: 210: 209: 202: 195: 188: 182: 181: 174: 167: 160: 156: 155: 150: 145: 140: 37:Wythoff symbol 25: 22: 13: 10: 9: 6: 4: 3: 2: 1000: 989: 986: 985: 983: 968: 965: 963: 960: 958: 955: 953: 950: 948: 945: 943: 940: 938: 935: 934: 932: 929: 925: 918: 915: 912: 909: 906: 903: 902: 900: 896: 889: 888:Johnson solid 886: 883: 882:Catalan solid 880: 877: 874: 871: 868: 867: 865: 861: 852: 849: 846: 843: 840: 837: 836: 834: 831: 829: 826: 824: 821: 819: 816: 815: 813: 809: 802: 799: 796: 793: 790: 787: 784: 781: 778: 777:Hexoctahedron 775: 772: 769: 766: 763: 760: 757: 756: 754: 750: 744: 741: 739: 736: 734: 731: 729: 726: 724: 721: 719: 716: 714: 711: 709: 708:Tridecahedron 706: 704: 701: 699: 698:Hendecahedron 696: 695: 693: 689: 683: 680: 678: 675: 673: 670: 668: 665: 663: 660: 658: 655: 653: 650: 648: 645: 643: 640: 638: 635: 634: 632: 628: 621: 617: 610: 605: 603: 598: 596: 591: 590: 587: 583: 577: 573: 569: 565: 561: 557: 553: 549: 545: 541: 537: 533: 529: 525: 520: 518: 515: 512:Johnson, N.; 511: 510: 506: 502: 498: 494: 490: 486: 485: 480: 477: 474: 470: 466: 463: 462: 458: 450: 445: 442: 436: 434: 432: 428: 421: 416: 412: 409: 407: 404: 403: 399: 397: 395: 391: 386: 384: 380: 372: 365: 361: 358: 354: 351: 347: 345: 342: 337: 334: 331: 329: 326: 319: 307:12 {5}, 12 { 304: 292:20 {3}, 12 { 289: 286: 281: 249: 217: 215: 212: 207: 203: 200: 196: 193: 189: 187: 186:Vertex figure 184: 179: 175: 172: 168: 165: 161: 158: 154: 151: 149: 146: 144: 141: 138: 137: 134: 132: 128: 124: 120: 116: 112: 108: 104: 100: 96: 92: 88: 84: 80: 76: 72: 68: 65: 45: 42: 38: 34: 29: 23: 21: 19: 801:Apeirohedron 752:>20 faces 703:Dodecahedron 581: 527: 523: 513: 483: 475: 473:Phil. Trans. 472: 459:Bibliography 444: 439:Har'El, 1993 387: 376: 130: 122: 118: 114: 110: 106: 102: 98: 94: 74: 70: 66: 63: 43: 40: 30: 27: 15: 743:Icosahedron 691:11–20 faces 677:Enneahedron 667:Heptahedron 657:Pentahedron 652:Tetrahedron 501:dual images 481:Har'El, Z. 928:prismatoid 913:(infinite) 682:Decahedron 672:Octahedron 662:Hexahedron 637:Monohedron 630:1–10 faces 489:Zvi Har’El 417:References 131:ditrigonal 87:pentagrams 31:The three 988:Polyhedra 942:antiprism 647:Trihedron 616:Polyhedra 576:122634260 552:0080-4614 83:pentagons 79:triangles 982:Category 642:Dihedron 400:See also 381:and the 89:. Their 18:geometry 962:pyramid 947:frustum 568:0365333 532:Bibcode 312:⁄ 297:⁄ 275:⁄ 265:⁄ 255:⁄ 243:⁄ 233:⁄ 223:⁄ 127:hexagon 60:⁠ 48:⁠ 952:cupola 828:vertex 574:  566:  558:  550:  497:Images 287:Faces 159:Image 957:wedge 937:prism 797:(132) 572:S2CID 560:74475 556:JSTOR 476:246 A 422:Notes 139:Type 85:, or 35:with 919:(57) 890:(92) 884:(13) 878:(13) 847:(16) 823:edge 818:face 791:(90) 785:(60) 779:(48) 773:(32) 767:(30) 761:(24) 548:ISSN 392:and 377:The 117:or ( 73:and 907:(4) 872:(5) 841:(9) 803:(∞) 540:doi 528:278 270:.5. 260:.5. 238:.3. 228:.3. 46:or 16:In 984:: 930:‌s 570:, 564:MR 562:, 554:, 546:, 538:, 526:, 499:, 495:, 491:, 467:, 430:^ 396:. 320:32 317:} 305:24 302:} 290:32 250:5. 218:3. 81:, 62:| 608:e 601:t 594:v 542:: 534:: 314:2 310:5 299:2 295:5 277:3 273:5 267:3 263:5 257:3 253:5 245:2 241:5 235:2 231:5 225:2 221:5 123:q 121:. 119:p 115:q 113:. 111:p 109:. 107:q 105:. 103:p 101:. 99:q 97:. 95:p 75:q 71:p 67:q 64:p 57:2 54:/ 51:3 44:q 41:p

Index

geometry
uniform star polyhedron
Wythoff symbol
triangles
pentagons
pentagrams
vertex configurations
hexagon
Small ditrigonal icosidodecahedron
Ditrigonal dodecadodecahedron
Great ditrigonal icosidodecahedron



Vertex figure



Vertex configuration
Wythoff symbol
Coxeter diagram



small ditrigonal dodecicosidodecahedron
great ditrigonal dodecicosidodecahedron
small ditrigonal dodecacronic hexecontahedron
great ditrigonal dodecacronic hexecontahedron
Small complex icosidodecahedron
Great complex icosidodecahedron

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