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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:138AU2of2 GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 1√2, 3√2, 4√2, 6, 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 44 75 39 63 72 36 32 75 39 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
4√2
6
3√2
5√2
36√2
36