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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:142CA GHM

Order: 19

Horizontal side: 142 Vertical side: 142

Elements: 2, 2√2, 4, 4√2, 18, 19, 20, 15√2, 18√2, 19√2, 30, 26√2, 30√2, 45, 52, 45√2, 71, 97, 71√2.

Code: 975 0 45 714 71 71 713 142 71 264 97 45 203 123 51 192 142 52 191 142 71 523 142 0 20 103 51 21 105 51 182 123 33 181 123 51 40 101 49 41 105 49 457 0 45 450 45 45 304 75 15 303 105 15 154 90 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)

97
71√2
71
26√2
20
19√2
19
52
2√2
2
18√2
18
4√2
4
45
45√2
30√2
30
15√2