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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:216BS GHM

Order: 19

Horizontal side: 216 Vertical side: 216

Elements: 1√2, 2, 2√2, 3√2, 6, 5√2, 6√2, 10√2, 22, 16√2, 27√2, 54, 76, 54√2, 70√2, 76√2, 108, 140, 108√2.

Code: 1405 0 76 1084 108 108 1083 216 108 274 135 81 223 162 86 547 162 108 546 162 54 56 135 81 22 142 84 21 142 86 12 143 85 104 152 76 166 146 70 30 143 85 67 140 82 60 146 82 765 0 0 764 76 0 700 146 70

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)

140
108√2
108
27√2
22
54
54√2
5√2
2√2
2
1√2
10√2
16√2
3√2
6
6√2
76
76√2
70√2