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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:180AO1of4 GHM

Order: 19

Horizontal side: 180 Vertical side: 180

Elements: 1√2, 2, 2√2, 6√2, 12, 12√2, 24, 24√2, 43, 45, 48, 42√2, 44√2, 45√2, 47√2, 88, 90, 92, 90√2.

Code: 927 0 180 446 48 136 887 92 180 906 90 90 60 48 136 426 0 88 127 42 130 120 54 130 247 42 118 240 66 118 487 42 94 476 43 47 22 92 92 905 90 0 435 0 45 16 42 46 25 43 45 457 0 45 450 45 45

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)

92
44√2
88
90√2
6√2
42√2
12
12√2
24
24√2
48
47√2
2√2
90
43
1√2
2
45
45√2