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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:216BH GHM

Order: 19

Horizontal side: 216 Vertical side: 216

Elements: 2√2, 4, 4√2, 6, 6√2, 7√2, 12, 14√2, 16√2, 23√2, 46, 62, 46√2, 78, 92, 108, 78√2, 138, 108√2.

Code: 1385 0 78 1084 108 108 1083 216 108 234 131 85 160 154 108 621 216 108 76 131 85 42 142 88 41 142 92 22 144 90 144 156 78 923 170 0 462 216 46 66 138 84 125 144 78 65 138 78 785 0 0 784 78 0 463 216 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)

138
108√2
108
23√2
16√2
62
7√2
4√2
4
2√2
14√2
92
46√2
6√2
12
6
78
78√2
46