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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:178AD GHM

Order: 18

Horizontal side: 178 Vertical side: 178

Elements: 2, 8, 6√2, 10, 8√2, 12, 10√2, 22, 28, 25√2, 28√2, 50, 50√2, 72, 78, 75√2, 78√2, 128.

Code: 1287 0 178 280 128 178 281 156 178 102 166 168 221 178 178 103 166 158 125 166 156 87 156 158 80 164 158 21 166 158 64 172 150 786 100 78 756 25 75 727 100 150 785 100 0 250 25 75 507 0 50 500 50 50

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)

128
28√2
28
10√2
22
10
12
8
8√2
2
6√2
78√2
75√2
72
78
25√2
50
50√2