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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:80AY GHM

Order: 19

Horizontal side: 80 Vertical side: 80

Elements: 4, 4√2, 6, 5√2, 8, 6√2, 10, 8√2, 10√2, 16, 13√2, 20, 15√2, 20√2, 30, 27√2, 30√2, 50, 40√2.

Code: 505 0 30 404 40 40 276 53 53 130 53 53 101 50 40 52 55 35 161 66 40 82 74 32 150 55 35 83 74 24 62 80 26 307 0 30 300 30 30 104 40 20 63 80 20 44 70 20 43 74 20 204 60 0 203 80 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
27√2
13√2
10
5√2
16
8√2
15√2
8
6√2
30
30√2
10√2
6
4√2
4
20√2
20