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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:108CG GHM

Order: 19

Horizontal side: 108 Vertical side: 108

Elements: 4, 4√2, 8, 12, 9√2, 16, 18, 20, 15√2, 20√2, 30, 24√2, 39, 40, 30√2, 48, 39√2, 60, 69.

Code: 695 0 39 601 60 108 405 60 68 481 108 108 205 60 48 204 80 48 46 96 64 85 100 60 163 96 48 45 96 60 127 96 60 306 78 30 94 69 39 246 54 24 187 78 48 397 0 39 390 39 39 154 54 24 305 78 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)

69
60
40
48
20
20√2
4√2
8
16
4
12
30√2
9√2
24√2
18
39
39√2
15√2
30