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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:148AS GHM

Order: 18

Horizontal side: 148 Vertical side: 148

Elements: 4√2, 6, 8, 7√2, 8√2, 10√2, 12√2, 20, 24, 20√2, 34, 40, 54, 47√2, 74, 54√2, 94, 74√2.

Code: 945 0 54 744 74 74 743 148 74 204 94 54 203 114 54 102 124 64 341 148 74 126 112 52 245 124 40 545 0 0 544 54 0 76 101 47 67 108 54 40 112 52 87 108 48 80 116 48 470 101 47 401 148 40

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)

94
74√2
74
20√2
20
10√2
34
12√2
24
54
54√2
7√2
6
4√2
8
8√2
47√2
40