Bicone

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.

Geometry

For a circular bicone with radius R and height center-to-top H, the formula for volume becomes

V={\frac {2}{3}}\pi R^{2}H.

For a right circular cone, the surface area is

SA=2\pi RS\,

where

S={\sqrt {R^{2}+H^{2}}}

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