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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:72BL GHM

Order: 18

Horizontal side: 72 Vertical side: 72

Elements: 2, 3, 8, 6√2, 10, 8√2, 12, 14, 10√2, 11√2, 19, 14√2, 22, 25, 25√2, 36, 47, 36√2.

Code: 475 0 25 364 36 36 363 72 36 114 47 25 140 58 36 141 72 36 257 0 25 250 25 25 191 44 25 37 44 25 82 52 14 81 52 22 105 52 12 104 62 12 223 72 0 23 52 12 66 44 6 127 50 12

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)

47
36√2
36
11√2
14√2
14
25
25√2
19
3
8√2
8
10
10√2
22
2
6√2
12