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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:200AO GHM

Order: 18

Horizontal side: 200 Vertical side: 200

Elements: 14, 10√2, 14√2, 20, 26, 28, 20√2, 23√2, 28√2, 44, 46, 56, 49√2, 72, 100, 72√2, 128, 100√2.

Code: 1285 0 72 1004 100 100 1003 200 100 284 128 72 283 156 72 142 170 86 441 200 100 143 170 72 202 190 66 727 0 72 720 72 72 494 121 23 263 170 46 203 190 46 102 200 56 563 200 0 236 121 23 467 144 46

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)

128
100√2
100
28√2
28
14√2
44
14
20√2
72
72√2
49√2
26
20
10√2
56
23√2
46