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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:72AF GHM

Order: 18

Horizontal side: 72 Vertical side: 72

Elements: 4√2, 5√2, 8, 10, 8√2, 12, 9√2, 10√2, 16, 18, 20, 16√2, 24, 18√2, 20√2, 27√2, 31√2, 36√2.

Code: 362 36 36 314 31 41 100 62 72 101 72 72 166 36 46 202 72 42 201 72 62 56 31 41 165 36 30 243 72 18 96 27 27 125 36 18 84 44 22 83 52 22 270 27 27 44 48 18 184 54 0 183 72 0

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)

36√2
31√2
10√2
10
16√2
20√2
20
5√2
16
24
9√2
12
8√2
8
27√2
4√2
18√2
18