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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:172AQ4of4 GHM

Order: 19

Horizontal side: 172 Vertical side: 172

Elements: 6√2, 12, 12√2, 13√2, 24, 18√2, 26, 21√2, 36, 26√2, 42, 34√2, 52, 73, 52√2, 78, 94, 99, 73√2.

Code: 995 0 73 781 78 172 365 78 136 941 172 172 425 78 94 241 102 136 122 114 124 121 114 136 62 120 130 186 102 112 522 172 78 214 99 73 346 86 60 523 172 26 737 0 73 730 73 73 134 86 60 264 146 0 263 172 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)

99
78
36
94
42
24
12√2
12
6√2
18√2
52√2
21√2
34√2
52
73
73√2
13√2
26√2
26