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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:70AZ GHM

Order: 18

Horizontal side: 70 Vertical side: 70

Elements: 2, 2√2, 3, 4, 3√2, 4√2, 7, 5√2, 8, 15, 20, 15√2, 25, 30, 35, 25√2, 45, 35√2.

Code: 455 0 25 354 35 35 353 70 35 81 43 35 42 47 31 71 50 35 52 55 30 201 70 35 43 47 27 32 50 28 303 55 0 152 70 15 33 50 25 24 45 25 23 47 25 255 0 0 254 25 0 153 70 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)

45
35√2
35
8
4√2
7
5√2
20
4
3√2
30
15√2
3
2√2
2
25
25√2
15