Pyramid
A Polyhedron with one face a Polygon and all the other faces Triangles with a commonVertex. An 
-gonal regular pyramid (denoted 
) has EquilateralTriangles, and is possible only for 
, 4, 5. These correspond to the Tetrahedron,Square Pyramid, and Pentagonal Pyramid, respectively. A pyramid therefore has a single cross-sectional shape inwhich the length scale of the Cross-Section scales linearly with height. The Area at a height 
is given by
 | (1) |
is the base Area and 
is the pyramid height. The Volume is therefore given by | (2) |
The Centroid is the same as for the Cone, given by
 | (3) |
 | (4) |
is the Slant Height and 
is the base Perimeter. Joining two Pyramids together attheir bases gives a Bipyramid, also called a Dipyramid.See also Bipyramid, Elongated Pyramid, Gyroelongated Pyramid, Pentagonal Pyramid, Pyramid, PyramidalFrustum, Square Pyramid, Tetrahedron, Truncated Square Pyramid
References
Beyer, W. H. (Ed.) CRC Standard Mathematical Tables, 28th ed. Boca Raton, FL: CRC Press, p. 128, 1987. Hart, G. W. ``Pyramids, Dipyramids, and Trapezohedra.'' http://www.li.net/~george/virtual-polyhedra/pyramids-info.html.
- Gaussian Distribution
- Gaussian Distribution Linear Combination of Variates
- Gaussian Elimination
- Gaussian Function
- Gaussian Hypergeometric Series
- Gaussian Integer
- Gaussian Integral
- Gaussian Integral (Linking Number)
- Gaussian Joint Variable Theorem
- Gaussian Mountain Range
- Gaussian Multivariate Distribution
- Gaussian Polynomial
- Gaussian Prime
- Gaussian Quadrature
- Gaussian Sum
- Gauss-Jacobi Mechanical Quadrature
- Gauss-Jordan Elimination
- Gauss-Kummer Series
- Gauss-Kuzmin-Wirsing Constant
- Gauss-Laguerre Quadrature
- Gauss-Manin Connection
- Gauss Map
- Gauss Measure
- Gauss Multiplication Formula
- Gauss Plane