Question

in a plane, lines that never meet are called ______. perpendicular intersecting concentric parallel

Explanation:

To solve this, we analyze each option:

• "Perpendicular" lines intersect at a right angle, so they meet, eliminating this.
• "Intersecting" lines meet at a point, so this is incorrect.
• "Concentric" refers to circles with the same center, not lines, so this is irrelevant.
• "Parallel" lines in a plane are defined as lines that never meet (they have the same slope and no intersection point).

Answer:

D. parallel