Squaring.net >> IRTS >> PPIRTSS >> Order 18

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:130AF2of2 GHM

Order: 18

Horizontal side: 130 Vertical side: 130

Elements: 2, 2√2, 4, 3√2, 4√2, 8, 7√2, 11√2, 22, 21√2, 22√2, 43, 44, 54, 65, 76, 54√2, 65√2.

Code: 765 0 54 654 65 65 653 130 65 114 76 54 210 87 65 431 130 65 547 0 54 540 54 54 81 62 54 42 66 50 74 69 47 43 66 46 32 69 47 24 64 44 23 66 44 441 108 44 222 130 22 223 130 0

The properties below may precede order:side in a tiling's title:

Credit for Discovery

Just three people are credited with the discovery of Primitive Perfects:

Geoffrey H. Morley (GHM, England)

Jasper D. Skinner, II (JDS, United States)

William T. Tutte (WTT, Canada, 1917-2002) (15:44AI, 17:136AJ and 19:56AJ only)

76
65√2
65
11√2
21√2
43
54
54√2
8
4√2
7√2
4
3√2
2√2
2
44
22√2
22