Question

1. given line segments ab and cd are parallel, which statement is true? their corresponding angles are congruent. their slopes are undefined. they are perpendicular. they intersect at one point.

Explanation:

• When two lines are parallel, by the Corresponding Angles Postulate, their corresponding angles are congruent.
• Parallel lines do not have undefined slopes (unless they are vertical, but the general property is about corresponding angles). Parallel lines are not perpendicular (perpendicular lines have a slope - product of - 1). Parallel lines do not intersect (intersecting lines are not parallel).

Answer:

Their corresponding angles are congruent.