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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:139AL GHM

Order: 19

Horizontal side: 139 Vertical side: 139

Elements: 4, 12, 11√2, 16, 12√2, 17, 20, 22, 16√2, 24, 17√2, 20√2, 22√2, 39, 39√2, 50√2, 78, 61√2, 100.

Code: 1007 0 139 783 100 61 392 139 100 391 139 139 506 89 50 226 0 39 162 38 45 161 38 61 205 38 41 204 58 41 610 78 61 114 89 50 43 38 41 126 22 29 247 34 41 225 0 17 125 22 17 175 0 0 174 17 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)

100
78
39√2
39
50√2
22√2
16√2
16
20
20√2
61√2
11√2
4
12√2
24
22
12
17
17√2