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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:318AA GHM

Order: 19

Horizontal side: 318 Vertical side: 318

Elements: 19√2, 30√2, 48, 52, 60, 48√2, 52√2, 60√2, 90, 104, 76√2, 108, 114, 90√2, 128, 95√2, 138, 152, 114√2.

Code: 1387 0 318 1083 138 210 527 138 318 520 190 318 1281 318 318 1047 138 266 1523 242 114 762 318 190 306 0 180 607 30 210 606 30 150 482 138 162 481 138 210 956 223 95 902 90 90 1147 90 114 1140 204 114 194 223 95 903 90 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)

138
108
52
52√2
128
104
152
76√2
30√2
60
60√2
48√2
48
95√2
90√2
114
114√2
19√2
90