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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:142AV GHM

Order: 19

Horizontal side: 142 Vertical side: 142

Elements: 3√2, 6, 6√2, 9√2, 10√2, 12√2, 20, 20√2, 21√2, 30, 40, 30√2, 31√2, 51, 40√2, 60, 71, 82, 71√2.

Code: 827 0 142 400 82 142 401 122 142 202 142 122 201 142 142 513 142 71 120 42 102 94 51 93 66 54 96 212 81 81 314 91 71 36 51 93 65 54 90 300 30 90 301 60 90 100 81 81 710 71 71 711 142 71 607 0 60

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)

82
40√2
40
20√2
20
51
12√2
9√2
6√2
21√2
31√2
3√2
6
30√2
30
10√2
71√2
71
60