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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:120BC GHM

Order: 18

Horizontal side: 120 Vertical side: 120

Elements: 2, 2√2, 4, 3√2, 6, 6√2, 9√2, 16, 18, 17√2, 18√2, 34, 34√2, 50, 52, 51√2, 52√2, 86.

Code: 867 0 120 180 86 120 181 104 120 92 113 111 161 120 120 30 113 111 60 110 108 61 116 108 45 116 104 25 116 102 24 118 102 526 68 52 516 17 51 507 68 102 525 68 0 170 17 51 347 0 34 340 34 34

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)

86
18√2
18
9√2
16
3√2
6√2
6
4
2
2√2
52√2
51√2
50
52
17√2
34
34√2