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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:108AI GHM

Order: 19

Horizontal side: 108 Vertical side: 108

Elements: 4, 3√2, 4√2, 6, 6√2, 9√2, 10√2, 18, 20, 24, 28, 20√2, 30, 40, 30√2, 48, 60, 44√2, 54√2.

Code: 605 0 48 544 54 54 446 64 64 106 54 54 245 64 40 485 0 0 304 30 18 303 60 18 42 64 44 43 64 40 287 60 40 403 88 0 202 108 20 203 108 0 181 48 18 92 57 9 64 54 12 63 60 12 34 57 9

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)

60
54√2
44√2
10√2
24
48
30√2
30
4√2
4
28
40
20√2
20
18
9√2
6√2
6
3√2