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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:78AI GHM

Order: 18

Horizontal side: 78 Vertical side: 78

Elements: 8, 10, 11, 8√2, 10√2, 16, 17, 20, 21, 16√2, 17√2, 27, 20√2, 32, 34, 27√2, 40, 34√2.

Code: 345 0 44 344 34 44 100 68 78 101 78 78 200 58 68 201 78 68 213 38 27 325 38 16 401 78 48 175 0 27 174 17 27 277 0 27 270 27 27 111 38 27 164 54 0 163 70 0 82 78 8 83 78 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)

34
34√2
10√2
10
20√2
20
21
32
40
17
17√2
27
27√2
11
16√2
16
8√2
8