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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:171AA GHM

Order: 19

Horizontal side: 171 Vertical side: 171

Elements: 15√2, 22, 20√2, 30, 22√2, 37, 40, 31√2, 44, 51, 37√2, 53, 40√2, 60, 67, 74, 59√2, 60√2, 67√2.

Code: 675 0 104 674 67 104 370 134 171 371 171 171 303 97 104 152 112 119 741 171 134 590 112 119 537 0 104 226 31 82 447 53 104 316 0 51 225 31 60 405 31 20 404 71 20 600 111 60 601 171 60 515 0 0 204 51 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)

67
67√2
37√2
37
30
15√2
74
59√2
53
22√2
44
31√2
22
40
40√2
60√2
60
51
20√2