Squaring.net >> IRTS >> PPIRTSS >> Order 18

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:77AE GHM

Order: 18

Horizontal side: 77 Vertical side: 77

Elements: 1√2, 6√2, 12, 13, 14, 15, 16, 12√2, 13√2, 15√2, 24, 26, 20√2, 30, 26√2, 38, 31√2, 32√2.

Code: 387 0 77 260 38 77 261 64 77 132 77 64 131 77 77 326 45 32 120 12 51 121 24 51 62 30 45 204 44 31 303 30 15 145 30 31 247 0 39 10 45 32 167 30 31 310 46 31 155 0 0 154 15 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)

38
26√2
26
13√2
13
32√2
12√2
12
6√2
20√2
30
14
24
1√2
16
31√2
15
15√2