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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:240AA GHM

Order: 18

Horizontal side: 240 Vertical side: 240

Elements: 20, 22√2, 44, 48, 38√2, 39√2, 56, 44√2, 48√2, 68, 78, 56√2, 67√2, 96, 68√2, 106, 134, 96√2.

Code: 1345 0 106 964 96 144 963 192 144 482 240 192 481 240 240 686 172 124 384 134 106 446 128 100 207 172 144 685 172 56 1065 0 0 674 67 39 226 106 78 445 128 56 396 67 39 785 106 0 564 184 0 563 240 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)

134
96√2
96
48√2
48
68√2
38√2
44√2
20
68
106
67√2
22√2
44
39√2
78
56√2
56