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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:57AA10of16 GHM

Order: 19

Horizontal side: 57 Vertical side: 57

Elements: 2√2, 4, 4√2, 6, 8, 9, 8√2, 9√2, 14, 15, 18, 14√2, 21, 15√2, 18√2, 27, 28, 21√2, 30.

Code: 305 0 27 281 28 57 142 42 43 141 42 57 152 57 42 151 57 57 86 34 35 216 36 21 46 30 31 85 34 27 26 28 29 45 30 27 185 0 9 184 18 9 273 36 0 67 36 27 215 36 0 95 0 0 94 9 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)

30
28
14√2
14
15√2
15
8√2
21√2
4√2
8
2√2
4
18
18√2
27
6
21
9
9√2