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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:77AD GHM

Order: 18

Horizontal side: 77 Vertical side: 77

Elements: 3√2, 7, 5√2, 7√2, 10, 14, 10√2, 15, 14√2, 20, 27, 28, 22√2, 34, 35, 25√2, 28√2, 35√2.

Code: 355 0 42 354 35 42 70 70 77 71 77 77 140 63 70 141 77 70 343 49 22 287 49 56 286 49 28 157 0 42 106 5 32 207 15 42 56 0 27 105 5 22 32 52 25 275 0 0 250 52 25 224 27 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)

35
35√2
7√2
7
14√2
14
34
28
28√2
15
10√2
20
5√2
10
3√2
27
25√2
22√2