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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:216DL4of4 GHM

Order: 19

Horizontal side: 216 Vertical side: 216

Elements: 1√2, 2, 10, 10√2, 20, 20√2, 30, 34, 38, 40, 34√2, 37√2, 70, 72, 74, 72√2, 108, 144, 108√2.

Code: 1445 0 72 1084 108 108 1083 216 108 374 145 71 383 182 70 342 216 74 341 216 108 743 216 0 725 0 0 724 72 0 23 144 70 12 145 71 703 142 0 307 142 70 100 172 70 101 182 70 200 162 60 201 182 60 407 142 40

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)

144
108√2
108
37√2
38
34√2
34
74
72
72√2
2
1√2
70
30
10√2
10
20√2
20
40