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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:38AC GHM

Order: 18

Horizontal side: 38 Vertical side: 38

Elements: 1√2, 2√2, 4, 4√2, 6, 8, 6√2, 9, 11, 8√2, 12, 9√2, 11√2, 16, 12√2, 18, 20, 16√2.

Code: 207 0 38 120 20 38 121 32 38 62 38 32 61 38 38 166 22 16 86 0 18 167 8 26 46 20 22 87 24 26 116 9 11 45 20 18 92 9 9 185 20 0 24 22 16 16 8 10 115 9 0 93 9 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)

20
12√2
12
6√2
6
16√2
8√2
16
4√2
8
11√2
4
9√2
18
2√2
1√2
11
9