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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:140AK GHM

Order: 19

Horizontal side: 140 Vertical side: 140

Elements: 1√2, 2, 2√2, 4, 6, 7√2, 14, 20, 18√2, 28, 20√2, 28√2, 40, 56, 40√2, 46√2, 56√2, 80, 70√2.

Code: 805 0 60 704 70 70 566 84 84 143 84 70 565 84 28 74 77 63 63 84 64 16 77 63 27 78 64 26 78 62 47 80 64 186 66 46 405 0 20 404 40 20 460 66 46 284 112 0 283 140 0 205 0 0 204 20 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
70√2
56√2
14
56
7√2
6
1√2
2
2√2
4
18√2
40
40√2
46√2
28√2
28
20
20√2