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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:74AO1of2 GHM

Order: 19

Horizontal side: 74 Vertical side: 74

Elements: 4, 4√2, 8, 6√2, 7√2, 12, 14, 10√2, 18, 14√2, 20, 22, 17√2, 27, 20√2, 34, 27√2, 40, 47.

Code: 475 0 27 401 40 74 225 40 52 341 74 74 187 40 52 40 58 52 41 62 52 125 62 40 140 54 48 81 62 48 64 68 34 206 54 20 74 47 27 176 37 17 147 54 34 277 0 27 270 27 27 104 37 17 205 54 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)

47
40
22
34
18
4√2
4
12
14√2
8
6√2
20√2
7√2
17√2
14
27
27√2
10√2
20