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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:120AZ GHM

Order: 19

Horizontal side: 120 Vertical side: 120

Elements: 7, 7√2, 14, 12√2, 20, 21, 24, 28, 21√2, 22√2, 24√2, 28√2, 42, 44, 35√2, 50, 56, 42√2, 78.

Code: 787 0 120 420 78 120 421 120 120 120 36 78 561 92 78 282 120 50 281 120 78 240 24 66 241 48 66 445 48 22 503 120 0 212 21 21 211 21 42 77 21 42 70 28 42 201 48 42 147 21 35 350 35 35 224 70 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)

78
42√2
42
12√2
56
28√2
28
24√2
24
44
50
21√2
21
7
7√2
20
14
35√2
22√2