1. Create a circle with a center at C that intersects segment AB at 2 different points (Not A or B).[br]2. Name those intersection points D and E.[br]3. Create a circle with a center at D that goes through E.[br]4. Create a circle with a center at E that goes through D.[br]5. Create point F at the intersection above segment AB.[br]6. Create line CF.[br][br]Line CF is perpendicular to segment AB.