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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:136BK GHM

Order: 19

Horizontal side: 136 Vertical side: 136

Elements: 7, 9√2, 18, 18√2, 19√2, 28, 21√2, 23√2, 35, 27√2, 28√2, 42, 44, 46, 36√2, 54, 46√2, 54√2, 82.

Code: 827 0 136 466 36 90 547 82 136 546 82 82 366 0 54 465 36 44 192 101 63 423 101 21 355 101 28 272 27 27 445 36 0 234 59 21 77 101 28 280 108 28 281 136 28 90 27 27 214 80 0 180 18 18 181 36 18

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)

82
46√2
54
54√2
36√2
46
19√2
42
35
27√2
44
23√2
7
28√2
28
9√2
21√2
18√2
18