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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:112AK GHM

Order: 18

Horizontal side: 112 Vertical side: 112

Elements: 9√2, 10√2, 15, 18, 20, 21, 15√2, 19√2, 20√2, 30, 36, 38, 45, 36√2, 37√2, 38√2, 57, 46√2.

Code: 462 46 66 374 37 75 196 55 93 387 74 112 386 74 74 183 55 75 575 55 36 94 46 66 453 55 30 217 55 36 360 76 36 361 112 36 100 10 30 301 40 30 152 55 15 151 55 30 207 0 20 200 20 20

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)

46√2
37√2
19√2
38
38√2
18
57
9√2
45
21
36√2
36
10√2
30
15√2
15
20
20√2