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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:180AO4of4 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 0 180 483 92 132 422 134 138 431 135 180 457 135 180 456 135 135 10 134 138 470 133 137 21 135 137 440 44 132 244 68 108 243 92 108 124 80 96 123 92 96 64 86 90 24 88 88 900 90 90 901 180 90 887 0 88

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