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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:490AA GHM

Order: 19

Horizontal side: 490 Vertical side: 490

Elements: 11√2, 16√2, 42√2, 76, 84, 76√2, 84√2, 120, 142, 152, 164, 168, 120√2, 174, 142√2, 206, 164√2, 174√2, 185√2.

Code: 2067 0 490 1640 206 490 1641 370 490 1202 490 370 1201 490 490 1856 305 185 426 0 284 847 42 326 846 42 242 1687 126 326 1523 294 174 762 370 250 761 370 326 1422 142 142 110 305 185 166 126 158 1747 142 174 1740 316 174 1423 142 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)

206
164√2
164
120√2
120
185√2
42√2
84
84√2
168
152
76√2
76
142√2
11√2
16√2
174
174√2
142