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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:120AS GHM

Order: 18

Horizontal side: 120 Vertical side: 120

Elements: 2√2, 10, 9√2, 10√2, 16, 18, 14√2, 16√2, 18√2, 26, 32, 28√2, 30√2, 46, 37√2, 60, 74, 60√2.

Code: 745 0 46 604 60 60 603 120 60 144 74 46 166 72 44 327 88 60 306 90 30 465 0 0 374 37 9 263 72 18 165 72 28 20 90 30 105 72 18 104 82 18 280 92 28 96 37 9 185 46 0 184 64 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)

74
60√2
60
14√2
16√2
32
30√2
46
37√2
26
16
2√2
10
10√2
28√2
9√2
18
18√2