Squaring.net >> IRTS >> PPIRTSS >> Order 19

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:360AC GHM

Order: 19

Horizontal side: 360 Vertical side: 360

Elements: 4, 4√2, 8, 8√2, 27√2, 28√2, 54, 56, 42√2, 68, 56√2, 84, 84√2, 96√2, 138, 111√2, 138√2, 222, 180√2.

Code: 2225 0 138 1804 180 180 966 264 264 843 264 180 685 264 196 82 272 188 81 272 196 42 276 192 41 276 196 562 332 140 561 332 196 282 360 168 543 276 138 424 222 138 846 276 84 1385 0 0 1384 138 0 276 249 111 1110 249 111

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)

222
180√2
96√2
84
68
8√2
8
4√2
4
56√2
56
28√2
54
42√2
84√2
138
138√2
27√2
111√2