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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:90AG GHM

Order: 18

Horizontal side: 90 Vertical side: 90

Elements: 1√2, 2, 2√2, 4, 10, 9√2, 10√2, 11√2, 20, 22, 28, 22√2, 24√2, 38, 42, 46, 48, 45√2.

Code: 487 0 90 383 48 52 427 48 90 456 45 45 100 10 52 101 20 52 287 20 52 43 48 48 246 20 24 25 44 46 24 46 46 465 44 0 14 45 45 207 0 42 96 11 33 110 11 33 227 0 22 220 22 22

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)

48
38
42
45√2
10√2
10
28
4
24√2
2
2√2
46
1√2
20
9√2
11√2
22
22√2