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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:140AQ GHM

Order: 19

Horizontal side: 140 Vertical side: 140

Elements: 3√2, 6, 6√2, 9√2, 11√2, 18, 15√2, 22, 18√2, 22√2, 26√2, 30√2, 44, 59, 44√2, 66, 74, 81, 59√2.

Code: 815 0 59 661 66 140 302 96 110 741 140 140 186 78 92 442 140 66 96 69 83 185 78 74 30 69 83 67 66 80 60 72 80 154 81 59 266 70 48 443 140 22 597 0 59 590 59 59 114 70 48 224 118 0 223 140 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)

81
66
30√2
74
18√2
44√2
9√2
18
3√2
6
6√2
15√2
26√2
44
59
59√2
11√2
22√2
22