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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:78AO1of2 GHM

Order: 19

Horizontal side: 78 Vertical side: 78

Elements: 2√2, 3, 4, 3√2, 4√2, 6, 6√2, 8√2, 10√2, 12√2, 20, 24, 27, 20√2, 30, 24√2, 27√2, 48, 39√2.

Code: 485 0 30 394 39 39 276 51 51 126 39 39 275 51 24 305 0 0 204 20 10 203 40 10 45 40 26 44 44 26 63 48 24 32 51 27 33 51 24 82 48 18 24 42 24 64 48 18 240 54 24 241 78 24 104 30 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)

48
39√2
27√2
12√2
27
30
20√2
20
4
4√2
6
3√2
3
8√2
2√2
6√2
24√2
24
10√2