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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:84AL GHM

Order: 18

Horizontal side: 84 Vertical side: 84

Elements: 11, 9√2, 10√2, 11√2, 16, 18, 20, 22, 16√2, 18√2, 19√2, 20√2, 32, 33, 38, 27√2, 32√2, 33√2.

Code: 335 0 51 334 33 51 96 57 75 187 66 84 186 66 66 270 57 75 117 0 51 116 0 40 227 11 51 196 11 29 387 30 48 160 68 48 161 84 48 202 20 20 320 52 32 321 84 32 203 20 0 102 30 10

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
33√2
9√2
18
18√2
27√2
11
11√2
22
19√2
38
16√2
16
20√2
32√2
32
20
10√2