HEXAEDRON

, or Hexahedron, one of the five regular or Platonic bodies; being indeed the same as the cube; and is so called from its having 6 faces.— The square of the side or edge of a Hexahedron, is onethird of the square of the diameter of the circumscribing sphere: and hence the diameter of a sphere is to the side of its inscribed Hexahedron, as √3 to 1.

In general, if A, B, and C be put to denote respectively the linear side, the surface, and the solidity of a Hexahedron or cube, also r the radius of the inscribed sphere, and R the radius of the circumscribed one; then we have these general equations or relations: 1. . 2. . 3. . 4. . 5. .

previous entry · index · next entry

ABCDEFGHKLMNOPQRSTU and VWXYZABCEGLMN

Entry taken from A Mathematical and Philosophical Dictionary, by Charles Hutton, 1796.

This text has been generated using commercial OCR software, and there are still many problems; it is slowly getting better over time. Please don't reuse the content (e.g. do not post to wikipedia) without asking liam at holoweb dot net first (mention the colour of your socks in the mail), because I am still working on fixing errors. Thanks!

previous entry · index · next entry

HETEROGENEAL
HETEROGENEOUS
HETEROSCII
HEVELIUS (John)
HEXACHORD
* HEXAEDRON
HEXAGON
HEXASTYLE
HIPS
HIPPARCHUS
HIRCUS