A Polyhedron whose base is a polygon and its lateral faces are triangles meeting at a vertex is known as
A pyramid is a polyhedron whose base is a polygon and whose lateral faces are triangles with a common vertex.
A prism is a polyhedron whose base is a polygon (of any number of sides) and lateral faces are triangles with a common vertex.
A ___ is a polyhedron whose base and top are different polygons and whose lateral faces are parallelograms in shape.
What is the name of a polyhedron for which the base is a polygon and all lateral surfaces are triangles?