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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:80BB GHM

Order: 19

Horizontal side: 80 Vertical side: 80

Elements: 1√2, 3, 3√2, 6, 8, 9, 7√2, 8√2, 14, 10√2, 16, 20, 16√2, 20√2, 30, 40, 30√2, 50, 40√2.

Code: 505 0 30 404 40 40 403 80 40 204 60 20 166 64 24 307 0 30 300 30 30 201 50 30 102 60 20 143 64 10 165 64 8 74 57 3 16 63 9 63 63 3 95 63 0 84 72 0 83 80 0 34 60 0 33 63 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)

50
40√2
40
20√2
16√2
30
30√2
20
10√2
14
16
7√2
1√2
6
9
8√2
8
3√2
3