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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:70BC GHM

Order: 18

Horizontal side: 70 Vertical side: 70

Elements: 1√2, 3√2, 4√2, 7, 7√2, 11, 13, 14, 10√2, 11√2, 12√2, 13√2, 23, 24, 23√2, 35, 47, 35√2.

Code: 475 0 23 354 35 35 353 70 35 124 47 23 110 59 35 111 70 35 10 48 24 44 52 20 76 49 17 147 56 24 243 70 0 237 0 23 230 23 23 134 36 10 133 49 10 32 52 20 75 49 10 104 46 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)

47
35√2
35
12√2
11√2
11
1√2
4√2
7√2
14
24
23
23√2
13√2
13
3√2
7
10√2