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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:66AF GHM

Order: 18

Horizontal side: 66 Vertical side: 66

Elements: 2√2, 4, 3√2, 4√2, 6, 8, 6√2, 8√2, 9√2, 11√2, 18, 14√2, 18√2, 28, 30, 25√2, 27√2, 33√2.

Code: 332 33 33 301 30 66 185 30 48 184 48 48 276 39 39 62 36 42 94 39 39 63 36 36 285 36 14 34 33 33 116 25 25 250 25 25 144 50 0 20 64 14 40 62 12 41 66 12 80 58 8 81 66 8

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)

33√2
30
18
18√2
27√2
6√2
9√2
6
28
3√2
11√2
25√2
14√2
2√2
4√2
4
8√2
8