what is the shape of the bases for the following polyhedron?

-triangle
-rectangle
-square
-circle

The shape of the bases for the polyhedron depend on the type of polyhedron. For example, a triangular prism has triangular bases, a rectangular prism has rectangular bases, a square prism has square bases, and a cylinder has circular bases.

The shape of the bases for the following polyhedron are:

- Triangle: The base shape of a triangular polyhedron is a triangle.

- Rectangle: The base shape of a rectangular polyhedron is a rectangle (a quadrilateral with opposite sides parallel and equal in length).

- Square: The base shape of a square polyhedron is a square (a quadrilateral with all sides equal in length and all angles equal to 90 degrees).

- Circle: A circle does not have a base since it is a 2-dimensional shape. Polyhedra are 3-dimensional, so a circle cannot be a base for a polyhedron.