Answer:
A.The prism sliced by a plane parallel to the base will take the shape of the base.
D. The prism sliced by a plane perpendicular to the base will take the shape of the side face.
Explanation:
A slice is a section of a plane that consists of all points where the plane meets the figure.In a right rectangular prism, the opposite faces are parallel, this means that they do not meet.Any two adjacent faces in a right rectangular prism are perpendicular, to mean one plane will contain a line that is perpendicular to the other plane.If the slice is done by a plane parallel to one face of the prism, the formed slice is a rectangular face identical to the parallel face like in option A. If the slice is done by a plane perpendicular to the base, the slice formed is a rectangular region,with a height similar to that of the prism and a shape of the side face.