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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:120AC GHM

Order: 18

Horizontal side: 120 Vertical side: 120

Elements: 6, 9√2, 18, 22, 24, 18√2, 30, 22√2, 32, 24√2, 36, 44, 32√2, 34√2, 54, 44√2, 45√2, 64.

Code: 547 0 120 456 9 75 227 54 120 226 54 98 447 76 120 446 76 76 342 88 64 90 9 75 187 0 66 186 0 48 365 18 30 643 88 0 322 120 32 242 24 24 323 120 0 61 24 30 307 24 30 243 24 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)

54
45√2
22
22√2
44
44√2
34√2
9√2
18
18√2
36
64
32√2
24√2
32
6
30
24