Question

choos the given definition. definition intersecting lines that form right angles lines that belong to the same plane and never intersect a part of a line consisting of two endpoints and all points between them belonging to the same plane

Explanation:

1. "Intersecting lines that form right angles" is the definition of perpendicular lines.
2. "Lines that belong to the same plane and never intersect" is the definition of parallel lines.
3. "A part of a line consisting of two endpoints and all points between them" is the definition of a line - segment.
4. "Belonging to the same plane" is the definition of coplanar.

Answer:

1. Perpendicular lines
2. Parallel lines
3. Line segment
4. Coplanar