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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:216AN GHM

Order: 19

Horizontal side: 216 Vertical side: 216

Elements: 4, 5, 4√2, 6, 5√2, 8, 6√2, 9√2, 17√2, 34, 34√2, 57, 68, 74, 91, 108, 125, 91√2, 108√2.

Code: 1255 0 91 1084 108 108 1083 216 108 174 125 91 83 142 100 62 148 102 741 216 108 63 148 96 685 148 34 90 134 100 44 138 96 43 142 96 54 143 91 53 148 91 917 0 91 910 91 91 571 148 91 344 182 0 343 216 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)

125
108√2
108
17√2
8
6√2
74
6
68
9√2
4√2
4
5√2
5
91
91√2
57
34√2
34