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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:198AN GHM

Order: 18

Horizontal side: 198 Vertical side: 198

Elements: 3√2, 6, 6√2, 10, 9√2, 10√2, 18, 20, 18√2, 46, 46√2, 66, 76, 86, 66√2, 76√2, 122, 132.

Code: 1325 0 66 1221 122 198 767 122 198 766 122 122 182 140 104 183 140 86 92 149 95 30 149 95 60 146 92 61 152 92 462 198 46 107 122 86 106 122 76 207 132 86 863 152 0 665 0 0 664 66 0 463 198 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)

132
122
76
76√2
18√2
18
9√2
3√2
6√2
6
46√2
10
10√2
20
86
66
66√2
46