A pentagonal prism has 10 vertices because there are two five-sided shapes at both ends of a prism. A pentagonal prism has 15 edges and seven faces. Five faces are between the pentagons on each end.
Comparatively, a rectangular prism has eight vertices, 12 edges and six faces. A triangular prism contains six vertices, nine edges and five faces. A hexagonal prism has 12 vertices, 18 edges and eight faces. Every time an edge of a regular polygon is added to a three-dimensional prism, the vertices increase by two, the edges increase by three and the faces increase by one. The reverse is true when an edge is subtracted from a regular polygon in a prism-like figure.
Learn MoreThere are approximately 1,200 cubic feet in a 20-foot container. Measurement varies slightly and depends on the contents, type and exact capacity of the container.
Full Answer >The faces of a triangular prism are parallelograms while the two bases are triangles. This gives the prism three faces. In a regular prism, the faces are rectangles. However, some prisms lean to one side and are oblique.
Full Answer >A rectangle is a noun referring to a specific type of shape, while oblong is an adjective used to describe shapes or forms. A rectangle can be characterized as oblong.
Full Answer >The characteristics of a square are that it is a regular quadrilateral with equal sides and four 90-degree angles. Quadrilaterals can only be squares if they match a list of conditions, including that they must have two adjacent equal sides and be a rhombus with all equal angles.
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