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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:140AI GHM

Order: 19

Horizontal side: 140 Vertical side: 140

Elements: 3, 4√2, 8, 6√2, 8√2, 12, 9√2, 12√2, 18, 21, 18√2, 28, 36, 52, 61, 70, 79, 61√2, 70√2.

Code: 795 0 61 704 70 70 703 140 70 94 79 61 60 88 70 521 140 70 33 82 61 122 94 52 121 94 64 285 94 36 617 0 61 610 61 61 211 82 61 86 86 44 46 82 40 85 86 36 361 122 36 182 140 18 183 140 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)

79
70√2
70
9√2
6√2
52
3
12√2
12
28
61
61√2
21
8√2
4√2
8
36
18√2
18