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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:138AT GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 2√2, 4, 4√2, 6, 6√2, 12, 18, 17√2, 18√2, 19√2, 33, 34, 36, 34√2, 51, 69, 51√2, 87, 69√2.

Code: 875 0 51 694 69 69 693 138 69 184 87 51 183 105 51 125 105 57 331 138 69 65 105 51 64 111 51 20 117 57 40 115 55 41 119 55 192 138 36 517 0 51 510 51 51 344 85 17 343 119 17 363 138 0 174 102 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
18
12
33
6
6√2
2√2
4√2
4
19√2
51
51√2
34√2
34
36
17√2