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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:78AD GHM

Order: 19

Horizontal side: 78 Vertical side: 78

Elements: 4, 4√2, 5√2, 7√2, 12, 14, 16, 12√2, 22, 16√2, 17√2, 18√2, 28, 22√2, 32, 34, 25√2, 28√2, 46.

Code: 465 0 32 341 34 78 172 51 61 224 56 56 223 78 56 50 51 61 126 34 44 165 46 40 164 62 40 286 50 28 42 50 36 41 50 40 127 50 40 186 32 18 327 0 32 76 25 25 147 32 32 285 50 0 250 25 25

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
34
17√2
22√2
22
5√2
12√2
16
16√2
28√2
4√2
4
12
18√2
32
7√2
14
28
25√2