Many 3-d figures can have polygons for bases. If all ist faces are polygons then it is a polyhedron but it is possible to have 3-d figures with a polygonal base and non-polygonal faces.
They could be pentahedra in the form of triangular prisms or octahedra in the form of triangular antiprisms.
a polyhedron is any 3d figure with all flat polygons for sides(polygons have straight sides)
A polygon is a flat figure, like a square. A polyhedron is a 3D figure, like a cube.
Prism!
Any convex three dimensional figure with straight edges (or plain faces) will have polygons for bases so there is an infinity of such shapes.
They are prisms. The bases may be any polygons with three or more sides.
The figure would be a prism. However, congruent polygons in parallel planes are called bases.
heptagonal prism
It is a polygonal prism.
It is a polygonal prism.
Prism
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