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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:200AN GHM

Order: 18

Horizontal side: 200 Vertical side: 200

Elements: 2, 5√2, 8, 7√2, 10, 14, 10√2, 14√2, 28, 36, 36√2, 64, 72, 64√2, 100, 72√2, 128, 100√2.

Code: 1285 0 72 1004 100 100 1003 200 100 281 128 100 142 142 86 364 164 64 363 200 64 143 142 72 72 149 79 50 149 79 23 144 72 107 144 74 100 154 74 725 0 0 724 72 0 83 144 64 640 136 64 641 200 64

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
14√2
36√2
36
14
7√2
5√2
2
10
10√2
72
72√2
8
64√2
64