Perpendicular Lines Study Guide

1. Definition: Two lines are perpendicular if they intersect at a 90-degree angle.
2. Identifying Perpendicular Lines: Use a protractor to measure the angles where the lines intersect.
3. Symbol: The symbol for perpendicular lines is ⊥.
4. Parallel and Perpendicular Lines: Perpendicular lines intersect and form right angles, unlike parallel lines.
5. Applications: Perpendicular lines are used in construction, architecture, and engineering.
6. Perpendicular Bisector: A line that is perpendicular to another line segment and divides it into two equal parts.