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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:198AC GHM

Order: 18

Horizontal side: 198 Vertical side: 198

Elements: 4, 4√2, 8, 7√2, 8√2, 14, 14√2, 28, 35√2, 58, 42√2, 70, 58√2, 86, 98, 70√2, 112, 128.

Code: 1287 0 198 863 128 112 707 128 198 706 128 128 82 136 120 83 136 112 42 140 116 43 140 112 582 198 58 426 0 70 987 42 112 1123 140 0 352 35 35 583 198 0 70 35 35 283 28 0 142 42 14 141 42 28

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)

128
86
70
70√2
8√2
8
4√2
4
58√2
42√2
98
112
35√2
58
7√2
28
14√2
14