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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:136AV GHM

Order: 18

Horizontal side: 136 Vertical side: 136

Elements: 1√2, 2, 2√2, 3√2, 6, 6√2, 12, 11√2, 22, 23, 23√2, 45, 46, 45√2, 46√2, 68, 90, 68√2.

Code: 905 0 46 684 68 68 683 136 68 221 90 68 112 101 57 234 113 45 233 136 45 66 95 51 125 101 45 36 92 48 65 95 45 23 92 46 12 93 47 20 93 47 465 0 0 464 46 0 450 91 45 451 136 45

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)

90
68√2
68
22
11√2
23√2
23
6√2
12
3√2
6
2
1√2
2√2
46
46√2
45√2
45