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- :name
- elongated triangular pyramid (J7)
- :number
- 51
- :symbol
- @Y sub 3 @
- :sfaces
- 7 4{3} 3{4}
- :svertices
- 7 1(@3 sup 3@) 3(@3@.@4 sup 2@) 3(@3 sup 2@.@4 sup 2@)
- :net
- 7 4
- 3 3 5 7
- 4 1 0 3 4
- 3 2 1 4
- 4 4 3 7 8
- 3 6 4 8
- 4 8 7 10 11
- 3 9 8 11
- :solid
- 7 4
- 3 12 14 16
- 4 15 14 12 13
- 3 17 15 13
- 4 13 12 16 18
- 3 17 13 18
- 4 18 16 14 15
- 3 17 18 15
- :hinges
- 6
- 1 3 2 1 2.80176
- 3 3 4 1 2.80176
- 3 0 1 2 1.0472
- 5 3 6 1 2.80176
- 5 0 3 2 1.0472
- 3 1 0 2 1.5708
- :dih
- 4
- 3 3 3 1.23096
- 3 3 4 2.80176
- 3 3 4 1.5708
- 3 4 4 1.0472
- :vertices
- 19 12
- -1.5 .28868 0
- -1.5 1.28868 0
- -1 2.1547 0
- -.5 .28868 0
- -.5 1.28868 0
- 0 -.57735 0
- 0 2.1547 0
- .5 .28868 0
- .5 1.28868 0
- 1 2.1547 0
- 1.5 .28868 0
- 1.5 1.28868 0
- -2.24578 1.23504 -.97436
- -1.95711 2.0731 -.51139
- -1.78868 1.53928 -1.81011
- -1.5 2.37734 -1.34715
- -1.28868 .99495 -1.13654
- -1.25 2.77875 -.46603
- -1 1.83301 -.67358
- :EOF
-