Answer :
A rectangular prism has six faces.
It has two rectangular faces on the top and bottom, and four rectangular faces on the sides.
It has two rectangular faces on the top and bottom, and four rectangular faces on the sides.
Answer: 6
Think of a room. The room has floor and ceiling so that's 2 faces so far. Then there are 4 walls to bring the total faces to 2+4 = 6 overall.
An informal term for "rectangular prism" could be "block" or "box".