DEVELOPMENTS / NETS  TRIANGULAR PRISM
V. Ryan © 2010
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This is a typical triangular prism. This shape is occasionally used for packaging. 
A famous confectionery product is seen below, in three distinctive packages. However, each of the packages is a variation on a development / net called a triangular prism. Another name for this type of shape is a pentahedron. 
Diagram 1 is the usual type of triangular prism development / net that holds this world famous chocolate product. A plain version of the development / net is drawn below. 
Triangular prisms stack very tightly together, as shown in the diagram below. The triangles almost interlock producing a strong structure when placed in a cardboard box. When the cardboard box is full there is very little space left. This means that the triangular prism is an efficient shape. The development / net is relatively easy to manufacture. 
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