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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:69AB GHM

Order: 18

Horizontal side: 69 Vertical side: 69

Elements: 8, 6√2, 8√2, 12, 13, 11√2, 16, 12√2, 13√2, 21, 15√2, 16√2, 24, 26, 30, 33, 24√2, 45.

Code: 457 0 69 333 45 36 162 61 53 161 61 69 82 69 61 81 69 69 246 45 37 112 56 26 120 12 36 121 24 36 62 30 30 211 45 36 303 30 0 152 45 15 263 56 0 132 69 13 247 0 24 133 69 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)

45
33
16√2
16
8√2
8
24√2
11√2
12√2
12
6√2
21
30
15√2
26
13√2
24
13