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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:290AA GHM

Order: 18

Horizontal side: 290 Vertical side: 290

Elements: 4, 4√2, 6, 8, 6√2, 8√2, 12√2, 34, 34√2, 37√2, 74, 102, 74√2, 114, 102√2, 108√2, 188, 145√2.

Code: 1885 0 102 1454 145 145 1086 182 182 376 145 145 342 216 148 343 216 114 742 290 74 67 182 114 66 182 108 47 188 114 40 192 114 124 204 102 1143 216 0 87 188 110 80 196 110 1025 0 0 1024 102 0 743 290 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)

188
145√2
108√2
37√2
34√2
34
74√2
6
6√2
4
4√2
12√2
114
8
8√2
102
102√2
74