bipyramid
polyhedron formed by joining a pyramid and its mirror image base-to-base
heptagonal bipyramid
bipyramid with 14 sides
triangular bipyramid
bipyramid over a triangle
elongated bipyramid
polyhedron constructed by inserting a prism between the halves of a bipyramid
hexagonal bipyramid
polyhedron formed from two hexagonal pyramids joined at their bases
decagonal bipyramid
bipyramid with 20 faces
octagonal bipyramid
bipyramid with 16 faces
pentagonal bipyramid
third of the infinite set of face-transitive bipyramids