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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:180BL GHM

Order: 19

Horizontal side: 180 Vertical side: 180

Elements: 1, 1√2, 2, 2√2, 7√2, 14, 17, 14√2, 24, 21√2, 24√2, 45, 45√2, 66, 69, 90, 66√2, 114, 90√2.

Code: 1145 0 66 904 90 90 903 180 90 244 114 66 70 138 90 214 159 69 456 135 45 173 131 66 147 131 83 140 145 83 25 131 67 24 133 67 693 135 0 247 135 69 15 131 66 14 132 66 665 0 0 664 66 0 455 135 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)

114
90√2
90
24√2
7√2
21√2
45√2
17
14
14√2
2
2√2
69
24
1
1√2
66
66√2
45