Perpendicular Lines
Perpendicular lines are two distinct lines that intersect each other at a 90-degree angle, also known as a right angle. This means that when two lines are perpendicular, the angle formed between them is 90 degrees. The symbol used to indicate perpendicular lines is $\bot$. In real life, perpendicular lines can be observed in various objects and structures, such as the corners of a wall, the sides of a square, or the legs of a table. The concept of perpendicular lines is fundamental in geometry and has practical applications in various fields, including architecture, engineering, and design.
When identifying perpendicular lines, it is important to note that they are different from parallel lines, which are always the same distance apart and never intersect. Perpendicular lines, on the other hand, intersect at a right angle. The perpendicular symbol $\bot$ is used to express that two lines are perpendicular to each other. For example, if line AB is perpendicular to line CD, it is expressed as $\overline{AB} \bot \overline{CD}$.
In summary, perpendicular lines are a fundamental concept in geometry, representing two lines that intersect at a 90-degree angle, forming a right angle. They are symbolized by the perpendicular symbol $\bot$ and have practical applications in various real-life scenarios.
