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In geometry, a spherical cap or spherical dome is a portion of a sphere or of a ball cut off by a plane. It is also a spherical segment of one base, i.e., bounded by a single plane. If the plane passes through the center of the sphere (forming a great circle ), so that the height of the cap is equal to the radius of the sphere, the spherical ...
Caping worn by a farmer in Indonesia These women at the Awa Dance Festival in Japan wear the characteristic kasa of the dance Vietnamese nón tơi. The Asian conical hat is a simple style of conically shaped sun hat notable in modern-day nations and regions of China, Vietnam, Korea, Japan, Philippines, Indonesia, Malaysia, Thailand, Cambodia, Laos, Myanmar, Bangladesh, India, Nepal, and Bhutan.
nón Ba tầm, popular in the North of Vietnam; nón bài thơ, a thin white conical hat with pictures or a few verses usually from in Huế; nón dấu, a cap with pointed tips of beast soldiers from the feudal period; nón gõ, a hat made of straw, grafted for soldiers in the feudal period; nón khua, a cap worn by servants of feudal mandarins
In geometry, a spherical segment is the solid defined by cutting a sphere or a ball with a pair of parallel planes. It can be thought of as a spherical cap with the top truncated, and so it corresponds to a spherical frustum. The surface of the spherical segment (excluding the bases) is called spherical zone. Geometric parameters for spherical ...
In geometry, a spherical sector, [1] also known as a spherical cone, [2] is a portion of a sphere or of a ball defined by a conical boundary with apex at the center of the sphere. It can be described as the union of a spherical cap and the cone formed by the center of the sphere and the base of the cap.
Dually, if v is a vertex of P, then there is a cone that has its apex at v and that is tangent to O in a circle; this circle forms the boundary of a spherical cap within which the sphere's surface is visible from the vertex. That is, the circle is the horizon of the midsphere, as viewed from the vertex. The circles formed in this way are ...
The Vietnamese Wikipedia (Vietnamese: Wikipedia tiếng Việt) is the Vietnamese-language edition of Wikipedia, a free, publicly editable, online encyclopedia supported by the Wikimedia Foundation. Like the rest of Wikipedia, its content is created and accessed using the MediaWiki wiki software.
The Spherical Cap discussion has a diagram (!) which makes it easier to relate the cap to the sphere. Joe Smart 16 Dec 2011 joe.smart737@gmail.com — Preceding unsigned comment added by 203.87.162.5 ( talk ) 02:27, 16 December 2011 (UTC) [ reply ]