Copyright page â includes: 1  the declaration of copyright (that is, who owns the copyright, generally the authors) 2  other types of credits, such as illustrators, editorial staff, indexer, etc., and sometimes notes from the publishers. 3  edition number â this number represents the number of the edition and of the printing.
Credit: wonker CC-BY 2.0. Some other characteristics of a triangular prism are that they have five faces and nine edges. For comparison, a rectangular prism has six faces and 12 edges. Mathematicians have derived Euler's formula for these and similar shapes. It states that for a polyhedron the number of faces plus the number of vertices minus the number of edges is always two. For a triangular prism, this formula holds true: (5 + 6 - 9 = 2).
A traditional triangular prism is a solid figure which is made up of two triangular bases and three rectangular faces. The two triangular bases face each other and are joined together with the help of three rectangles. Triangular prism is the most useful prism in geometry as well as in optical physics.