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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:140AC GHM

Order: 19

Horizontal side: 140 Vertical side: 140

Elements: 10, 14√2, 16√2, 25, 28, 21√2, 31, 32, 35, 36, 28√2, 41, 42, 31√2, 36√2, 56, 42√2, 52√2, 70√2.

Code: 702 70 70 561 56 140 282 84 112 424 98 98 423 140 98 283 84 84 355 84 77 214 119 77 316 109 67 144 70 70 323 84 52 257 84 77 413 109 36 107 109 77 315 109 36 520 52 52 164 68 36 364 104 0 363 140 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√2
56
28√2
42√2
42
28
35
21√2
31√2
14√2
32
25
41
10
31
52√2
16√2
36√2
36