Final answer:
To draw a line perpendicular to a given line through a point and a line parallel to a given line through a point, use a ruler to draw the desired lines.
Step-by-step explanation:
To draw a line perpendicular to a given line through point P, we need to identify the given line and the point P. Using a ruler, draw a line segment through point P and make sure it is perpendicular to the given line.
To draw a line parallel to the given line through point R, we first need to identify the given line and the point R. Then, using a ruler, draw a line segment through point R that is parallel to the given line.