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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:50AL GHM

Order: 18

Horizontal side: 50 Vertical side: 50

Elements: 2, 2√2, 4, 4√2, 6, 5√2, 8, 7√2, 10, 11, 9√2, 14, 11√2, 18, 25, 18√2, 32, 25√2.

Code: 325 0 18 254 25 25 253 50 25 74 32 18 110 39 25 111 50 25 187 0 18 180 18 18 81 26 18 67 26 18 26 26 12 47 28 14 40 32 14 94 41 5 143 50 0 25 26 10 101 36 10 52 41 5

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)

32
25√2
25
7√2
11√2
11
18
18√2
8
6
2√2
4
4√2
9√2
14
2
10
5√2