Question

1. if two parallel lines are intersected by a transversal, what can you say about the alternate interior angles? they are supplementary they are complementary they are congruent they are undefined

Explanation:

When two parallel lines are intersected by a transversal, alternate interior angles are congruent. This is a fundamental property in geometry. Supplementary angles add up to \(180^{\circ}\), complementary angles add up to \(90^{\circ}\), and they are clearly defined by the parallel - transversal relationship.

Answer:

They are congruent