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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:140BI GHM

Order: 19

Horizontal side: 140 Vertical side: 140

Elements: 2√2, 4, 4√2, 6, 8, 7√2, 8√2, 15√2, 27, 30, 33, 25√2, 40, 30√2, 55, 70, 55√2, 85, 70√2.

Code: 855 0 55 704 70 70 703 140 70 154 85 55 70 100 70 401 140 70 80 93 63 81 101 63 42 105 59 61 107 63 335 107 30 43 105 55 22 107 57 273 107 30 557 0 55 550 55 55 254 80 30 304 110 0 303 140 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)

85
70√2
70
15√2
7√2
40
8√2
8
4√2
6
33
4
2√2
27
55
55√2
25√2
30√2
30