How many faces have perpendicular edges in an heptagonal based prism?

An heptagonal based prism, also known as a heptagonal prism, has two faces that are perpendicular to each other. These faces are the bases of the prism, which are heptagons in this case. The perpendicular edges are the edges that connect the vertices of the bases at right angles, resulting in a total of 14 perpendicular edges in a heptagonal prism.