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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:178AH GHM

Order: 19

Horizontal side: 178 Vertical side: 178

Elements: 12, 21, 15√2, 21√2, 30, 22√2, 33, 30√2, 44, 33√2, 37√2, 60, 44√2, 66, 52√2, 74, 60√2, 67√2, 74√2.

Code: 745 0 104 744 74 104 300 148 178 301 178 178 600 118 148 601 178 148 522 52 52 374 37 67 210 58 88 211 79 88 337 79 88 336 79 55 667 112 88 446 134 44 154 52 52 670 67 67 121 79 67 226 112 22 445 134 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)

74
74√2
30√2
30
60√2
60
52√2
37√2
21√2
21
33
33√2
66
44√2
15√2
67√2
12
22√2
44