A bicone or dicone (bi- comes from Latin, di- from Greek) is the three-dimensional surface of revolution of a rhombus around one of its axes of symmetry. Equivalently, a bicone is the surface created by joining two congruent right circular cones base-to-base.
For a circular bicone with radius R and height center-to-top H, the formula for volume becomes
For a right circular cone, the surface area is
|Name||Digonal bipyramid||Triangular bipyramid (J12)||Square bipyramid (O)||Pentagonal bipyramid (J13)||Hexagonal bipyramid||Heptagonal bipyramid||Octagonal bipyramid||Enneagonal bipyramid||Decagonal bipyramid||...||Apeirogonal bipyramid|
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