MATHEMATICS · Single correct · CBSE · Mathematics · Lines and Angles · Lines and Angles
Problem
When a transversal intersects two lines, which of the following conditions is sufficient to prove that the two lines are parallel?
(a) One pair of vertical angles are equal
(b) One pair of consecutive interior angles are equal
(c) One pair of alternate interior angles are equal
(d) One pair of corresponding angles sum to 180∘