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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:180BE GHM

Order: 19

Horizontal side: 180 Vertical side: 180

Elements: 2, 8, 6√2, 10, 8√2, 12, 11√2, 16, 22, 22√2, 23√2, 45, 45√2, 67, 68, 90, 68√2, 112, 90√2.

Code: 1125 0 68 904 90 90 903 180 90 224 112 68 66 128 84 125 134 78 234 157 67 456 135 45 163 128 68 82 136 76 21 136 78 107 136 78 110 146 78 83 136 68 685 0 0 684 68 0 673 135 0 227 135 67 455 135 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)

112
90√2
90
22√2
6√2
12
23√2
45√2
16
8√2
2
10
11√2
8
68
68√2
67
22
45