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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:240AC GHM

Order: 19

Horizontal side: 240 Vertical side: 240

Elements: 2√2, 4, 18, 18√2, 22√2, 36, 26√2, 27√2, 48, 37√2, 54, 48√2, 74, 54√2, 96, 118, 122, 96√2, 120√2.

Code: 1225 0 118 1204 120 120 966 144 144 226 122 122 965 144 48 26 120 120 45 122 118 1185 0 0 544 54 64 543 108 64 187 108 118 180 126 118 367 108 100 266 118 74 376 81 37 745 118 0 274 81 37 484 192 0 483 240 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)

122
120√2
96√2
22√2
96
2√2
4
118
54√2
54
18
18√2
36
26√2
37√2
74
27√2
48√2
48