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Primitive Perfect Isosceles Right Triangled Square

Title: _d 18:130AC GHM

Order: 18

Horizontal side: 130 Vertical side: 130

Elements: 2√2, 4, 5√2, 10, 9√2, 10√2, 11√2, 13√2, 20, 22, 20√2, 40, 45, 55, 65, 75, 55√2, 65√2.

Code: 755 0 55 654 65 65 653 130 65 104 75 55 103 85 55 52 90 60 451 130 65 96 81 51 405 90 20 557 0 55 550 55 55 134 68 42 26 79 53 47 81 55 110 79 53 221 90 42 204 110 0 203 130 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)

75
65√2
65
10√2
10
5√2
45
9√2
40
55
55√2
13√2
2√2
4
11√2
22
20√2
20