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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:138BW GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 3√2, 6, 10, 12, 10√2, 12√2, 17, 20, 22, 17√2, 20√2, 26√2, 40, 46, 52, 46√2, 69, 92, 69√2.

Code: 925 0 46 694 69 69 693 138 69 264 95 43 170 121 69 171 138 69 120 104 52 121 116 52 227 116 52 523 138 0 465 0 0 464 46 0 63 92 40 32 95 43 403 86 0 202 106 20 201 106 40 102 116 30 101 116 40

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)

92
69√2
69
26√2
17√2
17
12√2
12
22
52
46
46√2
6
3√2
40
20√2
20
10√2
10