Question

which undefined term can contain parallel lines? line plane point ray

Explanation:

1. Recall the definitions of undefined terms in geometry: A line is a one - dimensional figure, a plane is a two - dimensional flat surface, a point has no dimension, and a ray is a part of a line with one endpoint.
2. Analyze each option:

• A line: A single line cannot contain parallel lines (parallel lines are two or more lines).
• A plane: A plane is a two - dimensional surface. In a plane, we can have two or more lines that are parallel (they never intersect and are coplanar).
• A point: A point has no dimension and cannot contain any lines, let alone parallel lines.
• A ray: A ray is a part of a line and cannot contain parallel lines.

Answer:

B. plane