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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:110BE GHM

Order: 18

Horizontal side: 110 Vertical side: 110

Elements: 4, 4√2, 6, 5√2, 8, 6√2, 10, 8√2, 14, 16, 20√2, 30, 30√2, 50, 40√2, 60, 45√2, 80.

Code: 807 0 110 603 80 50 302 110 80 301 110 110 406 70 40 206 0 30 507 20 50 56 65 45 107 70 50 450 65 45 165 0 14 145 0 0 84 8 6 83 16 6 42 20 10 43 20 6 64 14 0 63 20 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)

80
60
30√2
30
40√2
20√2
50
5√2
10
45√2
16
14
8√2
8
4√2
4
6√2
6