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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:120AP3of4 GHM

Order: 19

Horizontal side: 120 Vertical side: 120

Elements: 2√2, 4, 4√2, 7, 8, 7√2, 14, 10√2, 12√2, 14√2, 20, 21, 28, 46, 53, 60, 67, 53√2, 60√2.

Code: 675 0 53 604 60 60 603 120 60 74 67 53 73 74 53 285 74 32 461 120 60 537 0 53 530 53 53 211 74 53 124 86 20 26 96 30 47 98 32 40 102 32 100 96 30 81 106 28 142 120 14 201 106 20 143 120 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)

67
60√2
60
7√2
7
28
46
53
53√2
21
12√2
2√2
4
4√2
10√2
8
14√2
20
14