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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:216CS1of2 GHM

Order: 19

Horizontal side: 216 Vertical side: 216

Elements: 2√2, 4, 3√2, 4√2, 6, 6√2, 8√2, 14√2, 20, 20√2, 40, 34√2, 74, 54√2, 71√2, 74√2, 108, 142, 108√2.

Code: 1425 0 74 1084 108 108 1083 216 108 344 142 74 206 156 88 407 176 108 546 162 54 86 148 80 205 156 68 60 148 80 745 0 0 744 74 0 36 145 71 67 148 74 20 154 74 40 152 72 41 156 72 710 145 71 144 162 54

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
108
34√2
20√2
40
54√2
8√2
20
6√2
74
74√2
3√2
6
2√2
4√2
4
71√2
14√2