Which of the following options is/are correct when a transversal intersects two parallel lines?
Corresponding angles are equal.
Alternate interior angles are equal.
Vertically opposite angles are equal.
If two lines are parallel then:
Corresponding angles are equal i.e., ∠a=∠e
Alternate interior angles are equal i.e., ∠c=∠f
Alternate exterior angles are equal i.e., ∠b=∠g
Vertically opposite angles are equal in case of intersecting lines.
Two angles are complementary when they add up to 90 degrees.