Question: If we take the cross-section parallel to the base of a rectangular prism, what shape would you see?
Answer: The shape that would be seen if you were to take a cross-section parallel to the base of a rectangular prism is a RECTANGLE
This is becasue the cross-section of a rectangular prism will always be a rectangle. The definition of a prism is that the cross-section parallel to the base will be uniform.
Hence the shape that would be seen is a RECTANGLE
Question: Can a cross-section be a sphere?
Answer: NO, A cross-section cannot be a sphere.
Question: Explain in two to three sentences
Answer: This is because Spheres are not polyhedra (examples of polyhedra are cube, prism, and pyramis). The intersection of a plane with a sphere is a circle (or a point if tangent to sphere). All cross sections of a sphere are circles and all circles are similar to one another.