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Illustration of a hexagonal bipyramid with hidden edges shown. A bipyramid, or dipyramid, is formed by joining two congruent pyramids at their bases. The bases in this illustration are hexagons.

Hexagonal Bipyramid

Illustration of a hexagonal bipyramid with hidden edges shown. A bipyramid, or dipyramid, is formed…

Illustration of a hexagonal bipyramid. A bipyramid, or dipyramid, is formed by joining two congruent pyramids at their bases. The bases in this illustration are hexagons.

Hexagonal Bipyramid

Illustration of a hexagonal bipyramid. A bipyramid, or dipyramid, is formed by joining two congruent…

Illustration of an elongated hexagonal dipyramid that is formed by elongating a hexagonal bipyramid by inserting a hexagonal prism between the two congruent halves.

Elongated Hexagonal Dipyramid

Illustration of an elongated hexagonal dipyramid that is formed by elongating a hexagonal bipyramid…

Illustration of an elongated hexagonal dipyramid that is formed by elongating a hexagonal bipyramid by inserting a hexagonal prism between the two congruent halves.

Elongated Hexagonal Dipyramid

Illustration of an elongated hexagonal dipyramid that is formed by elongating a hexagonal bipyramid…

Illustration of an elongated hexagonal dipyramid that is formed by elongating a hexagonal bipyramid by inserting a hexagonal prism between the two congruent halves.

Elongated Hexagonal Dipyramid

Illustration of an elongated hexagonal dipyramid that is formed by elongating a hexagonal bipyramid…