Answer:
The answer is triangular prism.
Explanation:
Triangular prism has exactly three rectangular faces.
Triangular Prism:
Triangular prisms are three-dimensional solids formed by putting rectangles and triangles together. It is a polyhedron made of a triangular base, a translated copy, and 3 faces joining corresponding sides. A right triangular prism has rectangular sides, otherwise it is oblique.It is a three dimensional shape with two parallel congruent circular faces whose cross sections (taken parallel to these circular faces) are circular....