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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:220DB GHM

Order: 19

Horizontal side: 220 Vertical side: 220

Elements: 2, 2√2, 4, 3√2, 6, 7√2, 20, 20√2, 40, 30√2, 40√2, 67, 73, 74, 80, 73√2, 74√2, 146, 110√2.

Code: 1465 0 74 1104 110 110 803 220 140 306 110 110 405 140 100 404 180 100 673 220 73 205 140 80 204 160 80 61 146 80 45 146 76 74 153 73 25 146 74 24 148 74 30 150 76 745 0 0 744 74 0 730 147 73 731 220 73

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)

146
110√2
80
30√2
40
40√2
67
20
20√2
6
4
7√2
2
2√2
3√2
74
74√2
73√2
73