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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:70AO GHM

Order: 18

Horizontal side: 70 Vertical side: 70

Elements: 1√2, 2, 2√2, 3√2, 7, 7√2, 10, 10√2, 16, 20, 23, 17√2, 20√2, 30, 33, 37, 40, 30√2.

Code: 407 0 70 233 40 47 307 40 70 373 70 33 170 17 47 161 33 47 72 40 40 71 40 47 25 33 31 24 35 31 30 37 33 331 70 33 14 34 30 205 0 10 204 20 10 300 40 30 105 0 0 104 10 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)

40
23
30
37
17√2
16
7√2
7
2
2√2
3√2
33
1√2
20
20√2
30√2
10
10√2