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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:120BE2of2 GHM

Order: 19

Horizontal side: 120 Vertical side: 120

Elements: 2, 2√2, 4, 6, 8, 8√2, 12√2, 24, 17√2, 21√2, 24√2, 34, 38, 40, 42, 48, 40√2, 80, 60√2.

Code: 805 0 40 604 60 60 483 120 72 126 60 60 245 72 48 244 96 48 343 120 38 84 80 40 63 88 42 87 88 48 423 82 0 212 103 21 41 86 42 22 88 40 21 88 42 405 0 0 404 40 0 174 103 21 383 120 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)

80
60√2
48
12√2
24
24√2
34
8√2
6
8
42
21√2
4
2√2
2
40
40√2
17√2
38