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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:240AB GHM

Order: 19

Horizontal side: 240 Vertical side: 240

Elements: 21√2, 28√2, 42, 44, 34√2, 56, 44√2, 66, 68, 54√2, 56√2, 84, 62√2, 88, 90, 66√2, 108, 112, 87√2.

Code: 1085 0 132 874 87 153 660 174 240 661 240 240 216 87 153 427 108 174 620 150 174 901 240 174 885 0 44 544 54 78 346 54 78 687 88 112 1123 156 0 562 212 56 561 212 112 282 240 84 843 240 0 445 0 0 444 44 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)

108
87√2
66√2
66
21√2
42
62√2
90
88
54√2
34√2
68
112
56√2
56
28√2
84
44
44√2