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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:64AA1of2 GHM

Order: 18

Horizontal side: 64 Vertical side: 64

Elements: 2, 4√2, 8, 6√2, 7√2, 8√2, 12, 14, 16, 12√2, 18, 24, 18√2, 28, 20√2, 23√2, 24√2, 28√2.

Code: 285 0 36 284 28 36 46 52 60 87 56 64 86 56 56 120 52 60 123 40 36 247 40 48 246 40 24 182 18 18 204 20 16 66 34 30 143 34 16 72 41 23 230 41 23 183 18 0 25 18 16 167 18 16

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)

28
28√2
4√2
8
8√2
12√2
12
24
24√2
18√2
20√2
6√2
14
7√2
23√2
18
2
16