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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:80AO GHM

Order: 18

Horizontal side: 80 Vertical side: 80

Elements: 2, 4√2, 8, 8√2, 12, 9√2, 14, 18, 14√2, 17√2, 18√2, 26, 19√2, 28, 26√2, 27√2, 44, 40√2.

Code: 445 0 36 404 40 40 283 80 52 86 44 44 145 52 38 144 66 38 266 54 26 46 40 40 85 44 36 27 52 38 196 35 19 127 54 38 182 18 18 181 18 36 92 27 27 174 35 19 270 27 27 265 54 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)

44
40√2
28
8√2
14
14√2
26√2
4√2
8
2
19√2
12
18√2
18
9√2
17√2
27√2
26