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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:231AA GHM

Order: 19

Horizontal side: 231 Vertical side: 231

Elements: 12√2, 20, 20√2, 40, 45, 46, 40√2, 45√2, 46√2, 69, 70, 80, 81, 92, 69√2, 70√2, 105, 81√2, 116.

Code: 1167 0 231 700 116 231 701 186 231 452 231 186 451 231 231 1053 231 81 466 0 115 925 46 69 801 126 161 402 166 121 401 166 161 202 186 141 201 186 161 465 0 69 124 138 69 810 150 81 811 231 81 695 0 0 694 69 0

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)

116
70√2
70
45√2
45
105
46√2
92
80
40√2
40
20√2
20
46
12√2
81√2
81
69
69√2