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Primitive Perfect Isosceles Right Triangled Square

Title: _r 19:80BJ1of4 GHM

Order: 19

Horizontal side: 80 Vertical side: 80

Elements: 2√2, 4, 4√2, 6√2, 7√2, 10, 12, 14, 10√2, 18, 14√2, 20, 18√2, 28, 20√2, 21√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 14 141 14 28 72 21 21 281 42 28 107 42 28 210 21 21 203 80 0 185 42 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)

52
40√2
30√2
10√2
12
6√2
4√2
4
20√2
2√2
18√2
14√2
14
7√2
28
10
21√2
20
18