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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:70AQ2of4 GHM

Order: 19

Horizontal side: 70 Vertical side: 70

Elements: 1, 1√2, 2, 2√2, 3, 4, 5√2, 10, 9√2, 14, 10√2, 14√2, 20, 28, 20√2, 23√2, 28√2, 40, 35√2.

Code: 405 0 30 354 35 35 286 42 42 56 37 37 285 42 14 23 37 35 12 38 36 13 38 35 45 38 32 31 38 35 24 40 30 96 33 23 205 0 10 204 20 10 230 33 23 144 56 0 143 70 0 105 0 0 104 10 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)

40
35√2
28√2
5√2
28
2
1√2
1
4
3
2√2
9√2
20
20√2
23√2
14√2
14
10
10√2