What are the steps to constructing a perpendicular line?
1. Start by choosing a point on the given line. Let's call this point A.
2. Use a compass to draw an arc with point A as the center, cutting the line on both sides.
3. Without changing the compass width, place the compass on one of the points where the arc intersects the line. Draw another arc that intersects the original line.
4. Repeat step 3 with the other point where the arc intersects the line.
5. Draw a straight line connecting the two points where the arcs intersect the original line. This line is perpendicular to the original line and passes through point A.