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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:210AK GHM

Order: 19

Horizontal side: 210 Vertical side: 210

Elements: 8√2, 16, 16√2, 21√2, 30, 32, 42, 30√2, 32√2, 36√2, 56, 42√2, 60, 56√2, 60√2, 63√2, 112, 126, 90√2.

Code: 1265 0 84 904 90 120 300 180 210 301 210 210 600 150 180 601 210 180 364 126 84 86 154 112 167 162 120 166 162 104 327 178 120 326 178 88 1123 154 0 562 210 56 422 42 42 634 63 21 563 210 0 423 42 0 212 63 21

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)

126
90√2
30√2
30
60√2
60
36√2
8√2
16
16√2
32
32√2
112
56√2
42√2
63√2
56
42
21√2