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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:80BK GHM

Order: 19

Horizontal side: 80 Vertical side: 80

Elements: 2√2, 4, 4√2, 5√2, 6√2, 7√2, 10, 12, 14, 10√2, 14√2, 20, 18√2, 20√2, 21√2, 23√2, 30√2, 52, 40√2.

Code: 525 0 28 404 40 40 306 50 50 100 50 50 121 52 40 62 58 34 44 56 36 43 60 36 202 80 20 24 58 34 186 42 18 142 14 14 214 21 7 56 37 23 107 42 28 230 37 23 203 80 0 143 14 0 72 21 7

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)

52
40√2
30√2
10√2
12
6√2
4√2
4
20√2
2√2
18√2
14√2
21√2
5√2
10
23√2
20
14
7√2