A pyramid has eight edges. The pyramid is formed by four faces, or sides, that meet at an apex and a base. The four faces form a triangle and the base will form a square.
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A pyramid can only have an even number of edges. A bilateral polygonal solid that does have 13 edges is a heptahedron having 4 triangular sides and two rectangular sides, the edge
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Lateral Edge  An edge of a polyhedron, usually refers to a prism or a
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vertices 4 edges 10 faces 7 bases 7
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