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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:140AF GHM

Order: 18

Horizontal side: 140 Vertical side: 140

Elements: 5√2, 10, 10√2, 16, 15√2, 16√2, 24, 30, 32, 24√2, 32√2, 50, 56, 60, 64, 50√2, 80, 60√2.

Code: 807 0 140 600 80 140 601 140 140 156 5 65 305 20 50 641 84 80 322 116 48 561 140 80 50 5 65 107 0 60 100 10 60 507 0 50 500 50 50 323 116 16 242 140 24 243 140 0 164 100 0 163 116 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)

80
60√2
60
15√2
30
64
32√2
56
5√2
10
10√2
50
50√2
32
24√2
24
16√2
16