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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:70AX2of4 GHM

Order: 19

Horizontal side: 70 Vertical side: 70

Elements: 1√2, 3√2, 6, 6√2, 10, 8√2, 12, 9√2, 10√2, 12√2, 13√2, 14√2, 20, 28, 20√2, 22√2, 28√2, 40, 30√2.

Code: 407 0 70 286 12 42 202 60 50 201 60 70 102 70 60 101 70 70 306 40 30 123 12 30 285 12 14 65 0 24 64 6 24 96 3 21 82 48 22 122 12 12 34 3 21 220 48 22 12 13 13 144 26 0 130 13 13

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
28√2
20√2
20
10√2
10
30√2
12
28
6
6√2
9√2
8√2
12√2
3√2
22√2
1√2
14√2
13√2