Answer:
The answer is rectangular prism.
Explanation:
The rectangular prism is a solid (3-dimensional) object which has six faces that are rectangles in general. For this case, two face are squared, and these faces are opposite.
It has the same cross-section along a length, which makes it a prism.
I have attached an image that shows a rectangular prism and some formulas.
As we see, four rectangular faces are congruent and two rectangular faces (the opposites) are congruent.
The rectangular prism is also called "cuboid" or "rectangular solid".