A pyramid (not piramid) is a generic term used to describe a polyhedron with a polygonal base and a number of triangles rising from that base to meet at an apex. A pyramid whose base is a polygon with n-sides (or vertices) has n+1 faces, n+1 vertices and 2n edges, where n ≥ 3.
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A pyramid with an n-sided base will have n + 1 vertices, n + 1 faces, and 2n edges.
3 faces and 0 edges
6 faces and 12 edges.
6 faces, 12 edges
A sphere has no faces, no edges, and no vertices.