Question

Draw line l . Take point P anywhere outside the line. Using a set square, draw a line PQ perpendicular to line l .

Answer 1

Steps of construction:
1. Draw line l. Take point Q anywhere outside l.
2. Place one of the arms of the right angle of a set square along the line l.
3. Slide the set square along the line in such a way that the other arm of its right angle touches point P.
4. Draw a line along this side, passing through point Q. Name the line PQ.