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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:216BX1of4 GHM

Order: 19

Horizontal side: 216 Vertical side: 216

Elements: 3√2, 6, 8, 6√2, 8√2, 12, 16, 16√2, 24, 24√2, 28√2, 56, 74, 80, 68√2, 71√2, 74√2, 142, 108√2.

Code: 1425 0 74 1084 108 108 803 216 136 286 108 108 87 136 136 86 136 128 167 144 136 166 144 120 567 160 136 686 148 68 242 160 104 243 160 80 64 142 74 63 148 74 127 148 80 745 0 0 744 74 0 36 145 71 710 145 71

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)

142
108√2
80
28√2
8
8√2
16
16√2
56
68√2
24√2
24
6√2
6
12
74
74√2
3√2
71√2