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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:210AA GHM

Order: 19

Horizontal side: 210 Vertical side: 210

Elements: 16, 20, 21, 22, 16√2, 24, 20√2, 21√2, 22√2, 32, 24√2, 43, 32√2, 73, 89, 105, 121, 89√2, 105√2.

Code: 1215 0 89 1054 105 105 1053 210 105 164 121 89 163 137 89 202 157 85 731 210 105 897 0 89 890 89 89 244 113 65 243 137 65 203 157 65 212 178 64 224 135 43 223 157 43 213 178 43 322 210 32 431 178 43 323 210 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)

121
105√2
105
16√2
16
20√2
73
89
89√2
24√2
24
20
21√2
22√2
22
21
32√2
43
32