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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:85AA GHM

Order: 18

Horizontal side: 85 Vertical side: 85

Elements: 9√2, 10√2, 15, 16, 18, 20, 15√2, 22, 16√2, 17√2, 20√2, 30, 32, 33, 26√2, 38, 30√2, 35√2.

Code: 352 35 50 264 26 59 170 52 85 331 85 85 96 26 59 187 35 68 383 53 30 167 53 68 160 69 68 225 53 30 321 85 52 156 0 15 305 15 0 304 45 0 100 75 30 200 65 20 201 85 20 155 0 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)

35√2
26√2
17√2
33
9√2
18
38
16
16√2
22
32
15√2
30
30√2
10√2
20√2
20
15