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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:75AA GHM

Order: 18

Horizontal side: 75 Vertical side: 75

Elements: 3√2, 6, 7√2, 13, 15, 13√2, 19, 20, 15√2, 16√2, 26, 20√2, 29, 30, 22√2, 23√2, 40, 30√2.

Code: 302 30 45 234 23 52 160 46 75 291 75 75 76 23 52 222 52 37 191 49 59 137 49 59 130 62 59 65 49 40 261 75 46 303 30 15 34 52 37 403 55 0 202 75 20 203 75 0 155 0 0 154 15 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)

30√2
23√2
16√2
29
7√2
22√2
19
13
13√2
6
26
30
3√2
40
20√2
20
15
15√2