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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:176AE GHM

Order: 19

Horizontal side: 176 Vertical side: 176

Elements: 3√2, 6, 6√2, 12, 10√2, 20, 15√2, 30, 40, 29√2, 31√2, 37√2, 40√2, 58, 49√2, 78, 68√2, 98, 88√2.

Code: 985 0 78 884 88 88 686 108 108 203 108 88 312 139 77 104 98 78 303 108 58 785 0 0 494 49 29 370 139 77 296 49 29 585 78 0 154 93 43 123 108 46 36 93 43 65 96 40 64 102 40 404 136 0 403 176 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)

98
88√2
68√2
20
31√2
10√2
30
78
49√2
37√2
29√2
58
15√2
12
3√2
6
6√2
40√2
40