Not necessarily but a quadrilateral pyramid does.
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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. 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. So a pryramid can have 4 or more faces.
A pyramid is a solid shape that has a square at the bottom of it and it is surrounded by 4 triangles and has a point at the top.this is a pyramid!
Triangles
The pharaoh was buried under the pyramid, or near the bottom of the pyramid.
At the bottom of the step pyramid In the middle of a bent pyramid