Squaring.net >> IRTS >> NPIRTSS >> Order 9

Non-ultraperfect Perfect Isosceles Right Triangled Square

Title: _ 9:16PB

Order: 9

Horizontal side: 16 Vertical side: 16

Elements: 1, 1√2, 2, 3, 3√2, 5√2, 6√2, 10, 16.

Code: 167 0 16 103 16 6 60 6 6 54 11 1 36 13 3 23 13 1 35 13 0 14 12 0 13 13 0

The fact that every NPIRTS has a subdivided triangle is not recorded as a property. The properties below may precede order:side in a tiling's title:

Credit for Discovery

Jasper D. Skinner found many NPIRTS's before this catalogue was built by Geoffrey H. Morley. Only the two lowest order NPIRTS's are attributed to discoverers:

J. Douglas and E.P. Starke (D&S, United States) (7:10PA only)

Arthur H. Stone (AHS, United States, 1916-2000) (7:7PA only)

16
10
6√2
5√2
3√2
2
3
1√2
1