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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:138AV2of2 GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 1, 1√2, 6, 7, 5√2, 8, 10, 8√2, 10√2, 18√2, 33, 36, 33√2, 36√2, 51, 69, 51√2, 87, 69√2.

Code: 875 0 51 694 69 69 693 138 69 184 87 51 330 105 69 331 138 69 517 0 51 510 51 51 104 61 41 103 71 41 85 71 43 84 79 43 12 72 42 11 72 43 77 72 43 63 72 36 54 66 36 364 102 0 363 138 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)

87
69√2
69
18√2
33√2
33
51
51√2
10√2
10
8
8√2
1√2
1
7
6
5√2
36√2
36