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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:216AC GHM

Order: 18

Horizontal side: 216 Vertical side: 216

Elements: 8, 8√2, 10√2, 16, 20, 24, 24√2, 40, 30√2, 48, 39√2, 78, 80, 59√2, 98, 118, 88√2, 108√2.

Code: 1185 0 98 1084 108 108 886 128 128 203 128 108 805 128 48 104 118 98 306 98 78 985 0 0 594 59 39 396 59 39 785 98 0 481 176 48 242 200 24 241 200 48 87 200 48 80 208 48 167 200 40 403 216 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)

118
108√2
88√2
20
80
10√2
30√2
98
59√2
39√2
78
48
24√2
24
8
8√2
16
40