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A cone with a region including its apex cut off by a plane is called a truncated cone; if the truncation plane is parallel to the cone's base, it is called a frustum. [1] An elliptical cone is a cone with an elliptical base. [1] A generalized cone is the surface created by the set of lines passing through a vertex and every point on a boundary ...
A right frustum is a right pyramid or a right cone truncated perpendicularly to its axis; [3] otherwise, it is an oblique frustum. In a truncated cone or truncated pyramid, the truncation plane is not necessarily parallel to the cone's base, as in a frustum.
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Types of truncation on a square, {4}, showing red original edges, and new truncated edges in cyan. A uniform truncated square is a regular octagon, t{4}={8}. A complete truncated square becomes a new square, with a diagonal orientation. Vertices are sequenced around counterclockwise, 1-4, with truncated pairs of vertices as a and b.
The equations define the two-dimensional profile of the nose shape. The full body of revolution of the nose cone is formed by rotating the profile around the centerline C ⁄ L. While the equations describe the "perfect" shape, practical nose cones are often blunted or truncated for manufacturing, aerodynamic, or thermodynamic reasons. [2]
A tabun oven, or simply tabun (also transliterated taboon, from the Arabic: طابون), is a portable clay oven, shaped like a truncated cone. While all were made with a top opening, which could be used as a small stove top, some were made with an opening at the bottom from which to stoke the fire.
Buoy is a British type of anti-tank obstacle used to block roads intended to impede enemy movement. [1] Buoys were widely deployed during the invasion crisis of 1940–1941. ...
Drums similarly shaped to the ashiko - including the "truncated cone" form - can also be found in Afro-Colombian music (the Tambor Alegre in the Caribbean region of Colombia), as well as in Afro-Brazilian music, such as the Timbau. The latter, from the Bahia region, tends to have however synthetic heads and is, unlike the ashiko, tuned by pegs. [2]