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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:74AE2of2 GHM

Order: 19

Horizontal side: 74 Vertical side: 74

Elements: 4, 4√2, 8, 6√2, 7√2, 12, 14, 10√2, 17, 18, 14√2, 20, 22, 17√2, 20√2, 34, 37, 40, 37√2.

Code: 405 0 34 374 37 37 373 74 37 104 47 27 170 57 37 171 74 37 345 0 0 221 22 34 187 22 34 146 26 20 72 47 27 46 22 16 85 26 12 147 40 20 200 54 20 201 74 20 45 22 12 121 34 12 62 40 6

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
37√2
37
10√2
17√2
17
34
22
18
14√2
7√2
4√2
8
14
20√2
20
4
12
6√2