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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:240AH GHM

Order: 19

Horizontal side: 240 Vertical side: 240

Elements: 4√2, 6, 6√2, 10, 12, 16, 18, 17√2, 26, 34, 26√2, 34√2, 60√2, 86, 77√2, 120, 86√2, 154, 120√2.

Code: 1545 0 86 1204 120 120 1203 240 120 344 154 86 163 188 104 265 188 94 264 214 94 606 180 60 183 172 86 67 172 104 60 178 104 101 188 104 127 172 98 40 184 98 176 163 77 347 180 94 865 0 0 864 86 0 770 163 77

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)

154
120√2
120
34√2
16
26
26√2
60√2
18
6
6√2
10
12
4√2
17√2
34
86
86√2
77√2