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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:189AA GHM

Order: 19

Horizontal side: 189 Vertical side: 189

Elements: 4√2, 8, 8√2, 12√2, 20, 24, 20√2, 24√2, 34, 27√2, 34√2, 54, 40√2, 74, 54√2, 81, 88, 81√2, 135.

Code: 1357 0 189 276 108 162 547 135 189 546 135 135 883 108 74 812 189 81 813 189 0 206 0 54 82 28 66 81 28 74 42 32 70 404 68 34 743 108 0 120 32 70 247 20 58 240 44 58 205 0 34 345 0 0 344 34 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)

135
27√2
54
54√2
88
81√2
81
20√2
8√2
8
4√2
40√2
74
12√2
24
24√2
20
34
34√2