Talk:Pentagonal trapezohedron

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[edit] Pyramids?

I think that the sentence "The basic shape is two five-sided pyramids stuck together on their pentagonal face, one rotated by 36 degrees" is quite confusing and inaccurate; pyramids have triangular faces. Thus you cannot obtain a pentagonal trapezohedron just by "sticking together" two pyramids, though this seems suggestive. You would rather have to intersect them. fudo (questions?) 13:00, 13 April 2007 (UTC)

I think you're right. A geometrically exact explanation would be two pentagonal pyramids connected with a pentagonal antiprism between. At least that gives the volume. You then must merge triangle pairs to make the kite faces. Tom Ruen 19:14, 13 April 2007 (UTC)