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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:180BN2of4 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 90 125 113 101 65 113 95 64 119 95 90 125 101 215 113 74 34 116 92 181 134 92 462 180 46 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
12
6
6√2
9√2
21
3√2
18
46√2
7
7√2
14
74
60
60√2
46