Geometrical Construction | How To Construct Parallel Lines

Constructing a line parallel to a given line that goes through a given point involves knowing some facts about parallel lines and copying angles. To do this, we will need to construct a transversal. This is a line that crosses two parallel lines. Several pairs of equal angles are created when we make such a line. Then, as long as we know how to copy angles, we can use this fact to create parallel lines.