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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:216CV GHM

Order: 19

Horizontal side: 216 Vertical side: 216

Elements: 3√2, 4√2, 6, 8, 8√2, 12, 12√2, 18√2, 28, 22√2, 40, 34√2, 68, 74, 71√2, 74√2, 108, 142, 108√2.

Code: 1425 0 74 1084 108 108 1083 216 108 344 142 74 283 176 80 182 194 90 401 216 108 220 194 90 63 148 74 127 148 80 120 160 80 84 168 72 83 176 72 745 0 0 744 74 0 36 145 71 44 172 68 710 145 71 681 216 68

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
28
18√2
40
22√2
6
12
12√2
8√2
8
74
74√2
3√2
4√2
71√2
68