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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:120AK GHM

Order: 19

Horizontal side: 120 Vertical side: 120

Elements: 2, 2√2, 4, 3√2, 4√2, 8, 11√2, 14√2, 20, 21, 20√2, 21√2, 40, 49, 50, 40√2, 60, 50√2, 60√2.

Code: 605 0 60 604 60 60 493 120 71 110 71 71 144 85 57 210 99 71 211 120 71 405 0 20 404 40 20 20 80 60 21 82 60 32 85 57 83 78 50 42 82 54 41 82 58 500 70 50 501 120 50 205 0 0 204 20 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)

60
60√2
49
11√2
14√2
21√2
21
40
40√2
2√2
2
3√2
8
4√2
4
50√2
50
20
20√2