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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:140AH GHM

Order: 18

Horizontal side: 140 Vertical side: 140

Elements: 6, 6√2, 7√2, 14, 10√2, 14√2, 22, 16√2, 21√2, 22√2, 32, 38, 32√2, 54, 70, 54√2, 86, 70√2.

Code: 865 0 54 704 70 70 703 140 70 164 86 54 100 102 70 381 140 70 60 92 60 61 98 60 142 112 46 141 112 60 72 119 53 547 0 54 540 54 54 224 76 32 223 98 32 210 119 53 324 108 0 323 140 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)

86
70√2
70
16√2
10√2
38
6√2
6
14√2
14
7√2
54
54√2
22√2
22
21√2
32√2
32