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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:140AM GHM

Order: 18

Horizontal side: 140 Vertical side: 140

Elements: 3, 3√2, 6, 9, 9√2, 18, 22, 26, 30, 22√2, 26√2, 44, 33√2, 48, 48√2, 70, 92, 70√2.

Code: 925 0 48 704 70 70 703 140 70 224 92 48 223 114 48 262 140 44 261 140 70 487 0 48 480 48 48 334 81 15 303 114 18 443 140 0 30 84 18 31 87 18 97 87 18 96 87 9 187 96 18 61 87 15

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)

92
70√2
70
22√2
22
26√2
26
48
48√2
33√2
30
44
3√2
3
9
9√2
18
6