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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:80BD GHM

Order: 18

Horizontal side: 80 Vertical side: 80

Elements: 1√2, 2, 2√2, 4, 4√2, 8, 8√2, 16, 12√2, 13√2, 14√2, 26, 27, 20√2, 27√2, 40, 53, 40√2.

Code: 535 0 27 404 40 40 403 80 40 124 52 28 86 56 32 167 64 40 206 60 20 43 56 28 85 56 24 14 53 27 146 40 14 27 54 28 26 54 26 277 0 27 270 27 27 134 40 14 265 54 0 44 60 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)

53
40√2
40
12√2
8√2
16
20√2
4
8
1√2
14√2
2
2√2
27
27√2
13√2
26
4√2