DRAW A PERPENDICULAR LINE FROM A POINT ON A STRAIGHT LINE
Given C, a point on the straight line r, follow these steps:
Step 1. From centre point C, draw an arc that intersects the line r at two points, D and E.
Step 2. Use D as the centre point. Draw an arc with a larger radius than in the previous step. Keep the same radius and use E as the centre point.
Draw another arc that intersects the previous one at point F.
Step 3. Draw the straight line CF. This is perpendicular to the line r.
Draw a perpendicular line from a point outside a straight line
Given G, a point outside the straight lines, follow these steps:
Step 1. From centre point G, draw an arc that intersects the line s at two points, H and J.
Step 2. Use H as the centre point. Draw an arc with a larger radius.
Keep the same radius and use J as the centre point. Draw another arc that intersects the previous one at point K.
Step 3. Draw the straight line GK. This is perpendicular to the lines.
Step 1. From centre point A and centre point B, draw two arcs that intersect at points T and U.
Step 2. Draw the line UT. This is perpendicular to the segment AB and it intersects AB's midpoint. It is the perpendicular bisector of segment AB.