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In geometry, an n-gonal antiprism or n-antiprism is a polyhedron composed of two parallel direct copies (not mirror images) of an n-sided polygon, connected by an alternating band of 2n triangles. They are represented by the Conway notation An. Antiprisms are a subclass of prismatoids, and are a (degenerate) type of snub polyhedron.
Notes: Two of these polyhedra may be constructed from the first two snub polyhedra in the list starting with the icosahedron : the pentagonal antiprism is a parabidiminished icosahedron and a pentagrammic crossed-antiprism is a parabidiminished great icosahedron, also known as a parabireplenished great icosahedron .
In geometry, the hexagonal antiprism is the 4th in an infinite set of antiprisms formed by an even-numbered sequence of triangle sides closed by two polygon caps. Antiprisms are similar to prisms except the bases are twisted relative to each other, and that the side faces are triangles, rather than quadrilaterals .
Triangular antiprism: A 3 (An octahedron is a special antiprism) O = A 3; C = dA 3; Square prism: P 4 (A cube is a special prism) C = P 4; Pentagonal antiprism: A 5. I = k 5 A 5 (A special gyroelongated dipyramid) D = t 5 dA 5 (A special truncated trapezohedron)
First edition (publ. Houghton Mifflin) American Capitalism: The Concept of Countervailing Power is a book by John Kenneth Galbraith, written in 1952.It contains a critique of the view that markets, left to their own devices, will provide socially optimal solutions.
Misbehaving: The Making of Behavioral Economics is a book by Richard Thaler, economist and professor at the University of Chicago's Booth School of Business. [1] He won the Nobel Prize for Economics in 2017.
Erich Kirchler (born 4 November 1954) is an Italian-Austrian psychologist and Professor of Economic Psychology at the University of Vienna. [1] His research covers the areas of work, organizational, consumer and economic psychology, in particular tax psychology and money management in private households. He is best known for his research on tax ...