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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:80AD GHM

Order: 18

Horizontal side: 80 Vertical side: 80

Elements: 5, 5√2, 7√2, 9√2, 14, 11√2, 18, 14√2, 21, 22, 18√2, 21√2, 31, 22√2, 37, 27√2, 31√2, 33√2.

Code: 332 33 47 224 22 58 223 44 58 272 71 53 184 62 62 183 80 62 94 71 53 316 49 31 114 33 47 373 44 21 56 44 26 315 49 0 55 44 21 70 7 21 214 28 0 213 49 0 147 0 14 140 14 14

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
22√2
22
27√2
18√2
18
9√2
31√2
11√2
37
5√2
31
5
7√2
21√2
21
14
14√2