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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:90AJ GHM

Order: 19

Horizontal side: 90 Vertical side: 90

Elements: 5, 7, 5√2, 10, 12, 15, 17, 18, 19, 15√2, 18√2, 19√2, 30, 35, 37, 38, 30√2, 45, 45√2.

Code: 455 0 45 454 45 45 353 90 55 103 55 45 52 60 50 171 72 55 182 90 37 181 90 55 53 60 45 125 60 38 305 0 15 304 30 15 73 60 38 383 53 0 192 72 19 191 72 38 373 90 0 155 0 0 154 15 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)

45
45√2
35
10
5√2
17
18√2
18
5
12
30
30√2
7
38
19√2
19
37
15
15√2