| 1. | It is a square bipyramid in any of three orthogonal orientations.
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| 2. | An icosahedron can also be called a gyroelongated pentagonal bipyramid.
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| 3. | The triangular bipyramid can form a tessellation of space with truncated tetrahedra.
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| 4. | What do you call a bipyramid with shaved base?
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| 5. | Each gallium atom bonds to 5 other gallium atoms forming a distorted trigonal bipyramid.
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| 6. | :With regular faces, I think you're describing the elongated square bipyramid.
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| 7. | This polyhedron can be constructed by taking a pentagonal bipyramid and truncating the polar axis vertices.
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| 8. | It can be seen as a " dual of a pentagonal prism is a pentagonal bipyramid.
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| 9. | It can be seen as a "'dual of a hexagonal prism is a hexagonal bipyramid.
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| 10. | Fill in the bipyramid to make it solid and give the triangles on the boundary the same identification as above.
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