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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:70AW GHM

Order: 19

Horizontal side: 70 Vertical side: 70

Elements: 1√2, 4, 4√2, 8, 12, 10√2, 15, 17, 13√2, 14√2, 20, 15√2, 22, 16√2, 20√2, 30, 24√2, 40, 30√2.

Code: 407 0 70 246 16 46 302 70 40 301 70 70 160 16 46 206 50 20 152 15 15 151 15 30 177 15 30 46 28 26 85 32 22 136 15 13 45 28 22 225 28 0 121 40 22 106 40 10 205 50 0 16 14 14 140 14 14

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)

40
24√2
30√2
30
16√2
20√2
15√2
15
17
4√2
8
13√2
4
22
12
10√2
20
1√2
14√2