Question

If a pyramid is cut with a plane parallel to the base, the intersection of the pyramid and the plane is ----- a cross section

Answer 1

Square cross section (Red)

Explanation:

If the pyramid is cut with a plane (green) parallel to the base, the intersection of the pyramid and the plane is a square cross section (red). If the pyramid is cut with a plane (green) passing through the top vertex and perpendicular to the base, the intersection of the pyramid and the plane is a triangular cross section (red)