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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:135AB GHM

Order: 18

Horizontal side: 135 Vertical side: 135

Elements: 3, 3√2, 6, 7, 6√2, 7√2, 12, 14, 12√2, 31, 31√2, 45, 52, 59, 45√2, 52√2, 83, 90.

Code: 905 0 45 831 83 135 527 83 135 526 83 83 122 95 71 123 95 59 62 101 65 63 101 59 32 104 62 33 104 59 312 135 31 77 83 59 76 83 52 147 90 59 593 104 0 455 0 0 454 45 0 313 135 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)

90
83
52
52√2
12√2
12
6√2
6
3√2
3
31√2
7
7√2
14
59
45
45√2
31