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Primitive Perfect Isosceles Right Triangled Square

Title: _d 19:278AF GHM

Order: 19

Horizontal side: 278 Vertical side: 278

Elements: 2, 2√2, 4, 4√2, 6√2, 27√2, 40, 46, 33√2, 40√2, 46√2, 66, 73, 66√2, 106, 139, 106√2, 172, 139√2.

Code: 1725 0 106 1394 139 139 1393 278 139 334 172 106 270 205 139 731 278 139 60 178 112 44 182 108 43 186 108 467 186 112 460 232 112 24 184 106 23 186 106 1067 0 106 1060 106 106 404 146 66 403 186 66 664 212 0 663 278 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)

172
139√2
139
33√2
27√2
73
6√2
4√2
4
46
46√2
2√2
2
106
106√2
40√2
40
66√2
66