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In geometry, a bicone or dicone (from Latin : bi-, and Greek: di-, both meaning "two") 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 at their bases. A bicone has circular symmetry and orthogonal bilateral symmetry.
For a bicone with radius and half-height , the volume is
and the surface area is
where
is the slant height.
Bipyramid name | Digonal bipyramid | Triangular bipyramid | Square bipyramid | Pentagonal bipyramid | Hexagonal bipyramid | ... | Apeirogonal bipyramid |
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Polyhedron image | ![]() | ![]() | ![]() | ![]() | ... | ||
Spherical tiling image | ![]() | ![]() | ![]() | ![]() | ![]() | Plane tiling image | ![]() |
Face config. | V2.4.4 | V3.4.4 | V4.4.4 | V5.4.4 | V6.4.4 | ... | V∞.4.4 |
Coxeter diagram | ![]() ![]() ![]() ![]() ![]() | ![]() ![]() ![]() ![]() ![]() | ![]() ![]() ![]() ![]() ![]() | ![]() ![]() ![]() ![]() ![]() | ![]() ![]() ![]() ![]() ![]() | ... | ![]() ![]() ![]() ![]() ![]() |