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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:78AE GHM

Order: 19

Horizontal side: 78 Vertical side: 78

Elements: 5, 4√2, 5√2, 7√2, 10, 9√2, 14, 15, 11√2, 18, 14√2, 20, 18√2, 28, 32, 23√2, 25√2, 46, 39√2.

Code: 465 0 32 394 39 39 256 53 53 146 39 39 205 53 33 42 57 29 151 68 33 57 68 33 50 73 33 325 0 0 234 23 9 143 46 18 72 53 25 110 57 29 107 68 28 283 78 0 96 23 9 185 32 0 184 50 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
39√2
25√2
14√2
20
4√2
15
5
5√2
32
23√2
14
7√2
11√2
10
28
9√2
18
18√2