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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:45AG GHM

Order: 19

Horizontal side: 45 Vertical side: 45

Elements: 2, 2√2, 3, 4, 6, 6√2, 9, 11, 12, 9√2, 13, 15, 11√2, 12√2, 18, 21, 22, 24, 18√2.

Code: 215 0 24 184 18 27 183 36 27 92 45 36 91 45 45 243 45 12 31 21 27 157 21 27 137 0 24 20 13 24 21 15 24 67 15 24 66 15 18 116 0 11 225 11 0 41 15 22 124 33 0 123 45 0 115 0 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)

21
18√2
18
9√2
9
24
3
15
13
2√2
2
6
6√2
11√2
22
4
12√2
12
11