Question

When a transversal cuts two lines such that pairs of alternate interior angles are equal, then the lines are

• A. perpendicular
• B. parallel
• C. inclined at 120${}^{\circ }$
• D. None of the above

Answer 1

The correct option is B

parallel

When a transversal cuts two lines such that pairs of alternate interior angles are equal, then the lines have to be parallel. The interior alternate angles are always equal for a pair of parallel lines.