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

Primitive Perfect Isosceles Right Triangled Square

Title: dr 19:138AC2of4 GHM

Order: 19

Horizontal side: 138 Vertical side: 138

Elements: 4, 4√2, 5√2, 8, 10, 12, 10√2, 12√2, 20, 15√2, 24, 20√2, 40, 49, 59, 69, 79, 59√2, 69√2.

Code: 795 0 59 694 69 69 693 138 69 104 79 59 103 89 59 52 94 64 491 138 69 126 82 52 245 94 40 597 0 59 590 59 59 154 74 44 83 82 44 125 82 40 44 78 40 43 82 40 401 118 40 202 138 20 203 138 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)

79
69√2
69
10√2
10
5√2
49
12√2
24
59
59√2
15√2
8
12
4√2
4
40
20√2
20