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

Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:240AA GHM

Order: 19

Horizontal side: 240 Vertical side: 240

Elements: 10√2, 20, 21√2, 28√2, 42, 44, 56, 44√2, 66, 68, 56√2, 84, 62√2, 88, 90, 66√2, 112, 87√2, 98√2.

Code: 982 98 142 874 87 153 660 174 240 661 240 240 216 87 153 427 108 174 620 150 174 901 240 174 100 98 142 883 88 44 207 88 132 687 88 112 1123 156 0 562 212 56 561 212 112 282 240 84 843 240 0 445 0 0 444 44 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)

98√2
87√2
66√2
66
21√2
42
62√2
90
10√2
88
20
68
112
56√2
56
28√2
84
44
44√2