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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:258AD GHM

Order: 19

Horizontal side: 258 Vertical side: 258

Elements: 12√2, 24, 24√2, 36, 46, 33√2, 36√2, 46√2, 66, 74, 54√2, 84, 64√2, 92, 74√2, 120, 87√2, 92√2, 148.

Code: 1207 0 258 876 33 171 467 120 258 466 120 212 927 166 258 926 166 166 642 184 148 330 33 171 1483 184 0 742 258 74 667 0 138 540 66 138 126 0 72 247 12 84 246 12 60 847 36 84 743 258 0 362 36 36 363 36 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)

120
87√2
46
46√2
92
92√2
64√2
33√2
148
74√2
66
54√2
12√2
24
24√2
84
74
36√2
36