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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:218BP GHM

Order: 19

Horizontal side: 218 Vertical side: 218

Elements: 2, 6√2, 12, 12√2, 24, 19√2, 40, 30√2, 36√2, 40√2, 42√2, 60, 80, 84, 60√2, 96, 98, 79√2, 158.

Code: 1587 0 218 803 158 138 602 218 158 601 218 218 796 139 79 420 78 138 404 118 98 403 158 98 21 120 98 985 120 0 194 139 79 366 0 60 847 36 96 963 120 0 302 30 30 60 30 30 243 24 0 122 36 12 121 36 24

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)

158
80
60√2
60
79√2
42√2
40√2
40
2
98
19√2
36√2
84
96
30√2
6√2
24
12√2
12