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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:105AA GHM

Order: 18

Horizontal side: 105 Vertical side: 105

Elements: 2√2, 4, 4√2, 12, 12√2, 23, 24, 31, 22√2, 23√2, 24√2, 37, 31√2, 45, 46, 48, 37√2, 62.

Code: 375 0 68 374 37 68 310 74 105 311 105 105 20 43 74 621 105 74 40 41 72 41 45 72 485 45 24 457 0 68 226 23 46 236 0 23 465 23 0 244 69 0 243 93 0 122 105 12 235 0 0 123 105 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)

37
37√2
31√2
31
2√2
62
4√2
4
48
45
22√2
23√2
46
24√2
24
12√2
23
12