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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:105AF GHM

Order: 18

Horizontal side: 105 Vertical side: 105

Elements: 1√2, 5√2, 12√2, 21, 23, 24, 17√2, 21√2, 22√2, 23√2, 24√2, 34, 36, 42, 46, 48, 41√2, 42√2.

Code: 422 42 63 414 41 64 230 82 105 231 105 105 176 42 65 345 59 48 461 105 82 16 41 64 222 64 43 423 42 21 54 64 43 483 69 0 242 93 24 241 93 48 122 105 36 363 105 0 215 0 0 214 21 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)

42√2
41√2
23√2
23
17√2
34
46
1√2
22√2
42
5√2
48
24√2
24
12√2
36
21
21√2