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

Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:158AV GHM

Order: 19

Horizontal side: 158 Vertical side: 158

Elements: 3√2, 9√2, 10√2, 12√2, 18, 20, 21, 15√2, 24, 20√2, 30, 39, 40, 49, 64, 79, 64√2, 94, 79√2.

Code: 945 0 64 794 79 79 793 158 79 154 94 64 183 109 61 395 109 40 491 158 79 647 0 64 640 64 64 241 88 64 122 100 52 34 91 61 94 100 52 213 109 40 401 128 40 202 148 20 201 148 40 102 158 30 303 158 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)

94
79√2
79
15√2
18
39
49
64
64√2
24
12√2
3√2
9√2
21
40
20√2
20
10√2
30