Two lines that cross each other are described as what?

• A. Parallel
• B. Similar
• C. Intersecting
• D. Perpendicular

Answer: (C)

When two lines cross, they share a single point where they meet. That situation is called intersecting lines. The crossing point is the intersection of the lines, and it shows they do meet.

They’re not parallel, since parallel lines never meet. They aren’t just “similar”—that term isn’t used for lines. They would only be perpendicular if they happened to meet at a right angle, which is a special case of intersecting lines. So intersecting is the right description for lines that cross.