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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:45AA1of4 GHM

Order: 19

Horizontal side: 45 Vertical side: 45

Elements: 2, 2√2, 3, 4, 4√2, 6, 6√2, 9, 11, 12, 9√2, 15, 11√2, 12√2, 18, 22, 24, 17√2, 18√2.

Code: 182 18 27 174 17 28 110 34 45 111 45 45 26 21 32 45 23 30 221 45 34 46 17 28 25 21 30 67 21 30 60 27 30 183 18 9 35 18 24 157 18 24 243 33 0 122 45 12 123 45 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)

18√2
17√2
11√2
11
2√2
4
22
4√2
2
6
6√2
18
3
15
24
12√2
12
9
9√2