A pyramid 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. If you include the base, 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.
exactly 6 sides
5 sides
4+4+4+4 4 sides are the bottom(Base) of the cube, 4 of the sides are the verticle edges of the cube, 4 more of the sides are the top of the cube/and the base of the trianglular pyramid, and the other 4 are the edges of the pyramid. Total number of edges is 16
20 faces and 10 sides
A pyramid must have at least four faces (sides) so a three sided pyramid is mathematically impossible.