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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:48AJ GHM

Order: 18

Horizontal side: 48 Vertical side: 48

Elements: 3, 4, 3√2, 4√2, 6, 8, 9, 7√2, 8√2, 9√2, 10√2, 11√2, 18, 20, 15√2, 18√2, 20√2, 30.

Code: 307 0 48 206 10 28 152 45 33 94 39 39 93 48 39 61 45 39 32 48 36 31 48 39 186 30 18 106 0 18 205 10 8 185 0 0 72 37 11 110 37 11 84 18 0 83 26 0 42 30 4 41 30 8

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)

30
20√2
15√2
9√2
9
6
3√2
3
18√2
10√2
20
18
7√2
11√2
8√2
8
4√2
4