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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:244AS3of8 GHM

Order: 19

Horizontal side: 244 Vertical side: 244

Elements: 3√2, 4√2, 6, 8, 6√2, 12, 9√2, 12√2, 30, 38, 42, 42√2, 80, 84, 80√2, 84√2, 122, 160, 122√2.

Code: 1605 0 84 1224 122 122 1223 244 122 381 160 122 122 172 110 424 202 80 423 244 80 123 172 98 305 172 80 65 160 92 64 166 92 96 163 89 85 160 84 34 163 89 845 0 0 844 84 0 40 168 84 800 164 80 801 244 80

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)

160
122√2
122
38
12√2
42√2
42
12
30
6
6√2
9√2
8
3√2
84
84√2
4√2
80√2
80