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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:84AY GHM

Order: 18

Horizontal side: 84 Vertical side: 84

Elements: 3√2, 4√2, 6, 8, 6√2, 8√2, 12, 9√2, 16, 12√2, 18, 16√2, 28, 21√2, 28√2, 33√2, 56, 42√2.

Code: 565 0 28 424 42 42 336 51 51 90 51 51 181 60 42 212 81 21 285 0 0 284 28 0 40 56 28 80 52 24 81 60 24 30 81 21 60 78 18 61 84 18 160 44 16 161 60 16 120 72 12 121 84 12

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)

56
42√2
33√2
9√2
18
21√2
28
28√2
4√2
8√2
8
3√2
6√2
6
16√2
16
12√2
12