Assuming the ground is flat, is WN parallel to the ground? Justify with the applicable theorem.

Answer 1

Yes, WN is parallel to the ground. This can be justified by the theorem that states: If a line is perpendicular to a plane, then it is perpendicular to every line in the plane that it intersects. In this case, WN intersects the ground perpendicularly, indicating that it is also parallel to the ground.