Question

A(n) _____ is a flat surface of a polyhedron in the shape of a polygon. edge vertex cross section face

Answer 1

Face



hope this helps

Answer 2

Answer: face

Explanation:

In geometry, a polyhedron is a solid with flat faces.

• A face is a flat surface of a polyhedron in the shape of a polygon.
• An edge is a segment that is the intersection of two faces of the figure.
• A vertex is the intersection of two sides of a polygon.
• Cross section is the intersection of a three-dimensional figure and a plane.