Answer:
A cross section is the intersection of a solid and a plane.
Explanation:
A cross section is the intersection of a solid and a plane.
The meaning of cross section is, when 2 three dimensional figures intersects and gives the two dimensional figure.
A solid and a plane both are three dimensional figures. So, this is correct. Example - When a plane cuts a sphere, the resulting figure is a circle. A circle is 2 D.