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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:76AN1of2 GHM

Order: 18

Horizontal side: 76 Vertical side: 76

Elements: 1, 2, 2√2, 4, 4√2, 6, 5√2, 9, 10, 9√2, 10√2, 19√2, 28, 24√2, 38, 28√2, 48, 38√2.

Code: 485 0 28 384 38 38 383 76 38 104 48 28 46 54 34 95 58 29 94 67 29 196 57 19 63 54 28 45 54 30 25 54 28 24 56 28 13 58 29 56 52 24 107 57 29 285 0 0 284 28 0 240 52 24

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)

48
38√2
38
10√2
4√2
9
9√2
19√2
6
4
2
2√2
1
5√2
10
28
28√2
24√2