A square
The cross-section of a cube can vary depending on how it is cut. If sliced parallel to one of its faces, the cross-section will be a square. If cut diagonally, the cross-section can be a rectangle or a more complex polygon, depending on the angle and position of the cut.
Infinitely many.
Yes it can.
The answer depends on the inclination of the intersecting plane. The cross section can be a point, a triangle, a rectangle, a pentagon or a hexagon.
Yes, but not a regular one.
No, a cube cannot have an octagonal cross-section.
A square.
A square
The cross-section of a cube can vary depending on how it is cut. If sliced parallel to one of its faces, the cross-section will be a square. If cut diagonally, the cross-section can be a rectangle or a more complex polygon, depending on the angle and position of the cut.
Yes it can.
Infinitely many.
Rectangle
The answer depends on the inclination of the intersecting plane. The cross section can be a point, a triangle, a rectangle, a pentagon or a hexagon.
It will be the same shape as a square
It is a prism with a pentagonal cross-section
The following are some shapes having a square cross section: a cube, a cuboid, a square pyramid.