Final answer:
A rectangular pyramid has five faces: one rectangular base and four triangular sides meeting at the apex.
Step-by-step explanation:
A rectangular pyramid has five faces geometrically. This includes the rectangular base and the four triangular faces that meet at the apex or the top of the pyramid. To visualize this, you can think of a tent with a rectangular base where four triangular sides slope upwards and meet at a single point.
Understanding various geometric shapes such as pyramids is important in mathematics and can have applications in fields ranging from engineering to architecture. For example, when studying the Great Pyramid at Giza or the step pyramid of Djoser, the number of faces and their shapes play a crucial role in their construction and stability.