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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:80BA GHM

Order: 19

Horizontal side: 80 Vertical side: 80

Elements: 4, 4√2, 6, 5√2, 8, 6√2, 10, 8√2, 14, 10√2, 16, 20, 15√2, 20√2, 30, 40, 30√2, 50, 40√2.

Code: 505 0 30 404 40 40 403 80 40 104 50 30 103 60 30 52 65 35 201 80 40 150 65 35 305 0 0 304 30 0 200 50 20 161 66 20 82 74 12 141 80 20 83 74 4 62 80 6 63 80 0 44 70 0 43 74 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
10√2
10
5√2
20
15√2
30
30√2
20√2
16
8√2
14
8
6√2
6
4√2
4