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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:180BN3of4 GHM

Order: 19

Horizontal side: 180 Vertical side: 180

Elements: 3√2, 6, 7, 6√2, 7√2, 12, 9√2, 14, 18, 21, 23√2, 46, 60, 46√2, 74, 60√2, 67√2, 120, 90√2.

Code: 1205 0 60 904 90 90 676 113 113 236 90 90 185 113 95 215 113 74 94 122 86 30 131 95 60 128 92 61 134 92 462 180 46 121 134 86 77 113 74 76 113 67 147 120 74 743 134 0 605 0 0 604 60 0 463 180 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)

120
90√2
67√2
23√2
18
21
9√2
3√2
6√2
6
46√2
12
7
7√2
14
74
60
60√2
46