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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:70AE GHM

Order: 18

Horizontal side: 70 Vertical side: 70

Elements: 4, 5, 4√2, 6, 5√2, 8, 6√2, 10, 8√2, 14, 10√2, 16, 25, 30, 25√2, 40, 30√2, 35√2.

Code: 405 0 30 354 35 35 256 45 45 106 35 35 255 45 20 307 0 30 300 30 30 101 40 30 52 45 25 53 45 20 161 56 20 82 64 12 141 70 20 83 64 4 62 70 6 63 70 0 44 60 0 43 64 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
35√2
25√2
10√2
25
30
30√2
10
5√2
5
16
8√2
14
8
6√2
6
4√2
4