Lines in the same plane that never intersect are called what?

• A. Perpendicular Lines
• B. Transversal
• C. Parallel Lines
• D. Circumcenter

Answer: (C)

Parallel lines are lines in the same plane that never intersect. They run in the same direction, so no matter how far you extend them, they stay apart and never meet. In a coordinate view, this happens when their slopes are the same, meaning they rise and run by the same amount, never crossing each other. A line that cuts across two lines is called a transversal, which helps describe how lines relate to each other but doesn’t make them parallel. If two lines do cross, they aren’t parallel, and a line perpendicular to one would meet it at a right angle, so they also aren’t parallel. The circumcenter is a concept from triangles, referring to a special center of a triangle’s circumscribed circle, and isn’t about parallelism.