A point where two or more straight lines meet is called what?

• A. Edge
• B. Vertex
• C. Corner
• D. Intersection

Answer: (B)

In geometry, a vertex is the point where two or more lines or edges meet, forming a corner or the tip of an angle. When two lines come together to form a corner of a shape, that meeting point is the vertex. This is why the point where the sides of a triangle or any polygon meet is called a vertex—the corner where those lines meet.

Edge refers to a side of the shape, not a meeting point. Corner is a general, less precise term in math for a corner point, but vertex is the standard technical term used in polygons and angles. Intersection describes the general crossing point of lines, but the question focuses on the corner-like meeting point within shapes, which is best described as a vertex.