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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:130AI1of2 GHM

Order: 19

Horizontal side: 130 Vertical side: 130

Elements: 5√2, 12, 12√2, 18, 20, 15√2, 24, 18√2, 20√2, 30, 24√2, 40, 42, 30√2, 48, 40√2, 45√2, 70, 65√2.

Code: 705 0 60 654 65 65 456 85 85 150 85 85 56 65 65 307 70 70 300 100 70 187 0 60 186 0 42 127 18 60 120 30 60 204 50 40 203 70 40 247 18 48 246 18 24 485 42 0 425 0 0 404 90 0 403 130 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)

70
65√2
45√2
15√2
5√2
30
30√2
18
18√2
12
12√2
20√2
20
24
24√2
48
42
40√2
40