[size=150]When a plane intersects a cube there is a variety of shapes of the resulting cross section.[list][*]a single point (a vertex of the cube)[/*][*]a line segment (an edge of the cube)[/*][*]a triangle (if three adjacent faces of the cube are intersected)[/*][*]a parallelogram (if two pairs of opposite faces are intersected – this includes a rhombus or rectangle)[/*][*]a trapezium (if two pairs of[/*][*]a pentagon (if the plane meets all but one face of the cube)[/*][*]a hexagon (if the plane meets all faces of the cube)[/*][/list][/size]