Following the steps below, what is the next step in constructing a line perpendicular to a segment?

47 changes says 4. Following the steps below, what is the next step in constructing a line perpendicular to a segment? 1. Start with a line and point K on that line. 2. Set the compass's width to a medium setting. The actual width does not matter. 3. Without changing the compass's width, mark a short are on the line at each side of the point K, forming the points P and Q. These two points are the same distance from K because you did not change the width of the compass. 4. without changing the compass's width, repeat from the point Q so that the two ares cross each other, creating the point R. Increase the compass to almost double the width (the exact setting is not important). Using the straight edge, draw a line from K to where the arcs cross. From P, mark off a short arc above K