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

Primitive Perfect Isosceles Right Triangled Square

Title: ir 18:56AS3of7 GHM

Order: 18

Horizontal side: 56 Vertical side: 56

Elements: 4, 4√2, 5√2, 8, 6√2, 10, 8√2, 12, 14, 10√2, 16, 12√2, 18, 16√2, 24, 19√2, 32, 28√2.

Code: 325 0 24 284 28 28 166 40 40 86 32 32 165 40 24 46 28 28 85 32 24 247 0 24 56 19 19 105 24 14 104 34 14 66 38 18 127 44 24 126 44 12 190 19 19 43 38 14 185 38 0 141 38 14

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
28√2
16√2
8√2
16
4√2
8
24
5√2
10
10√2
6√2
12
12√2
19√2
4
18
14