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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:308AH GHM

Order: 19

Horizontal side: 308 Vertical side: 308

Elements: 9√2, 18, 20, 18√2, 20√2, 27√2, 40, 54, 40√2, 44√2, 70, 74, 80, 70√2, 114, 154, 114√2, 194, 154√2.

Code: 1945 0 114 1544 154 154 1543 308 154 404 194 114 403 234 114 202 254 134 741 308 154 203 254 114 545 254 80 1147 0 114 1140 114 114 704 184 44 703 254 44 182 272 62 274 281 53 803 308 0 183 272 44 92 281 53 444 228 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)

194
154√2
154
40√2
40
20√2
74
20
54
114
114√2
70√2
70
18√2
27√2
80
18
9√2
44√2