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Elongated triangular bipyramid

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This is an old revision of this page, as edited by Tomruen (talk | contribs) at 19:19, 2 November 2009 (moved Elongated triangular dipyramid to Elongated triangular bipyramid over redirect: more standard name). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Elongated triangular bipyramid
TypeJohnson
J13 - J14 - J15
Faces6 triangles
3 squares
Edges15
Vertices8
Vertex configuration2(33)
6(32.42)
Symmetry groupD3h
Dual polyhedronTriangular bifrustum
Propertiesconvex

In geometry, the elongated triangular dipyramid is one of the Johnson solids (J14). As the name suggests, it can be constructed by elongating a triangular dipyramid (J12) by inserting a triangular prism between its congruent halves.

The 92 Johnson solids were named and described by Norman Johnson in 1966.

  • Weisstein, Eric W. "Johnson solid". MathWorld.
  • Weisstein, Eric W. "Elongated triangular dipyramid". MathWorld.