Question

two parallel lines are intersected by a third line so that angles 1 and 5 are congruent. which statement is true about angles 3 and 5? they are acute. they are congruent. they are complementary. they are supplementary.

Explanation:

Step1: Recall angle - pair relationships

When two parallel lines are intersected by a transversal, angles 3 and 5 are same - side interior angles.

Step2: Know the property of same - side interior angles

Same - side interior angles are supplementary, that is, the sum of their measures is 180°.

Answer:

They are supplementary.