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).
Triangular prisms are three-dimensional solids that have triangles for their bases and rectangles for their lateral faces. The line segment where two faces come together is an edge. The point that three edges come together is a vertex.