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Shoelace scheme for determining the area of a polygon with point coordinates (,),..., (,). The shoelace formula, also known as Gauss's area formula and the surveyor's formula, [1] is a mathematical algorithm to determine the area of a simple polygon whose vertices are described by their Cartesian coordinates in the plane. [2]
A sphere of radius r has surface area 4πr 2.. The surface area (symbol A) of a solid object is a measure of the total area that the surface of the object occupies. [1] The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with ...
The exterior angle theorem is Proposition 1.16 in Euclid's Elements, which states that the measure of an exterior angle of a triangle is greater than either of the measures of the remote interior angles.
Beyond the triangular bipyramid as its dual polyhedron, many other polyhedrons are related to the triangular prism. A Johnson solid is a convex polyhedron with regular faces, and this definition is sometimes omitted uniform polyhedrons such as Archimedean solids, Catalan solids, prisms and antiprisms. [13]
LSI Denny J.A. Indonesian Survey Circle (read: LSI Denny J.A) is a political consultant and survey institute in Indonesia.LSI Denny J.A was established in 2005 by a group of public opinion makers, researchers, columnists, and survey specialists who have a long history of involvement in the field of research.
Bitcoin (abbreviation: BTC; sign: ₿) is the first decentralized cryptocurrency.Based on a free-market ideology, bitcoin was invented in 2008 by an unknown entity under the pseudonym of Satoshi Nakamoto. [5]
Hydrogen: Helium: Lithium: Beryllium: Boron: Carbon: Nitrogen: Oxygen: Fluorine: Neon: Sodium: Magnesium: Aluminium: Silicon: Phosphorus: Sulfur: Chlorine: Argon ...
Kawung batik (Indonesian: Batik Kawung) is an Indonesian batik motif [1] whose shape is in the form of a circle similar to a kawung fruit (a type of coconut or sometimes also considered as sugar palm or palm fruit) which is neatly arranged geometrically.