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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:112AL GHM

Order: 18

Horizontal side: 112 Vertical side: 112

Elements: 6, 6√2, 10, 9√2, 10√2, 18, 20, 28, 20√2, 36, 38, 30√2, 48, 36√2, 37√2, 38√2, 54, 46√2.

Code: 462 46 66 374 37 75 283 74 84 387 74 112 386 74 74 96 37 75 187 46 84 543 64 30 485 64 36 101 74 84 65 64 30 64 70 30 360 76 36 361 112 36 100 10 30 304 40 0 207 0 20 200 20 20

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)

46√2
37√2
28
38
38√2
9√2
18
54
48
10
6
6√2
36√2
36
10√2
30√2
20
20√2