Which paper folding method can be used to form a perpendicular line segment? a. begin with a line segment on the paper and fold the paper so that the segment's endpoints lie on top of each other. b. begin with a segment and a point not on the segment. fold the paper through the point so that the given line segment lies upon itself. c. begin with a segment and a point on the segment. fold the paper through the point and twist it, creating an acute angle. d. begin with a segment and a point not on the segment. fold the paper at the point, creating a fold parallel to the line segment.