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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:60BA2of4 GHM

Order: 18

Horizontal side: 60 Vertical side: 60

Elements: 2√2, 4, 3√2, 4√2, 6, 8, 6√2, 10, 12, 9√2, 10√2, 18, 20, 22, 26, 30, 42, 30√2.

Code: 427 0 60 96 33 51 187 42 60 306 30 30 30 33 51 263 30 22 67 30 48 60 36 48 127 30 42 305 30 0 40 4 22 41 8 22 22 10 20 221 30 22 106 0 10 205 10 0 87 0 18 105 0 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)

42
9√2
18
30√2
3√2
26
6
6√2
12
30
4√2
4
2√2
22
10√2
20
8
10