Which construction might this image result from?

construction of a line perpendicular to PQ through a given point R on PQ

construction of a line perpendicular to AB through a given point R on AB

construction of the perpendicular bisector of AB

construction of a line segment congruent to AB

Which construction might this image result from construction of a line perpendicular to PQ through a given point R on PQ construction of a line perpendicular to class=