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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:74AI GHM

Order: 19

Horizontal side: 74 Vertical side: 74

Elements: 1√2, 3√2, 4√2, 6, 5√2, 6√2, 10, 12, 9√2, 12√2, 18, 13√2, 19, 15√2, 28, 37, 28√2, 46, 37√2.

Code: 465 0 28 374 37 37 373 74 37 94 46 28 56 50 32 105 55 27 191 74 37 40 50 32 287 0 28 280 28 28 134 41 15 10 54 28 120 53 27 121 65 27 62 71 21 63 71 15 32 74 18 183 74 0 154 56 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)

46
37√2
37
9√2
5√2
10
19
4√2
28
28√2
13√2
1√2
12√2
12
6√2
6
3√2
18
15√2