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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:70BF GHM

Order: 18

Horizontal side: 70 Vertical side: 70

Elements: 4, 4√2, 6, 5√2, 8, 6√2, 8√2, 14, 15, 16, 20, 15√2, 25, 20√2, 30, 25√2, 30√2, 50.

Code: 507 0 70 303 50 40 147 50 70 60 64 70 61 70 70 80 58 64 81 66 64 42 70 60 41 70 64 306 40 30 167 50 56 206 0 20 155 20 25 154 35 25 50 40 30 257 20 25 250 45 25 205 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)

50
30
14
6√2
6
8√2
8
4√2
4
30√2
16
20√2
15
15√2
5√2
25
25√2
20