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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:60AZ GHM

Order: 18

Horizontal side: 60 Vertical side: 60

Elements: 1√2, 3, 3√2, 6, 8, 9, 7√2, 10, 8√2, 14, 10√2, 16, 20, 16√2, 20√2, 30, 40, 30√2.

Code: 405 0 20 304 30 30 303 60 30 104 40 20 143 50 16 72 57 23 101 60 30 63 57 17 32 60 20 205 0 0 204 20 0 33 60 17 10 51 17 91 60 17 160 36 16 161 52 16 82 60 8 83 60 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)

40
30√2
30
10√2
14
7√2
10
6
3√2
20
20√2
3
1√2
9
16√2
16
8√2
8