Parallel Lines & Transversals - Angle Relationships

If two parallel lines are cut by a transversal, what can be said about alternate interior angles?

• They are equal.

• They are supplementary.

• They are complementary.

• They are unequal.

What is the relationship between alternate exterior angles when two parallel lines are cut by a transversal?

• They are equal.

• They are supplementary.

• They are complementary.

• They are unequal.

What are parallel lines?

• Lines that intersect at a right angle.

• Lines in a plane that never meet and are always the same distance apart.

• Lines that converge at a point.

• Lines that are curved and do not follow a straight path.

What are alternate interior angles?

• Angles that are on opposite sides of the transversal and inside the two parallel lines.

• Angles that are on the same side of the transversal and outside the two parallel lines.

• Angles that are equal to each other when two parallel lines are cut by a transversal.

• Angles that are formed by the intersection of two lines.

What are same side interior angles?

• Angles that are on the same side of the transversal and inside the two parallel lines.

• Angles that are on opposite sides of the transversal and outside the two parallel lines.

• Angles that are on the same side of the transversal and outside the two parallel lines.

• Angles that are opposite each other when two lines are crossed by a transversal.

If two parallel lines are cut by a transversal, what can be said about same side interior angles?

• They are complementary (add up to 90°).

• They are equal.

• They are supplementary (add up to 180°).

• They are congruent.

If angle 1 is 90°, what is angle 3 if they are vertical angles?

• Angle 3 is 45°.

• Angle 3 is 90°.

• Angle 3 is 180°.

• Angle 3 is 60°.

What is a transversal?

• A line that crosses at least two other lines in the same plane.

• A line that is parallel to another line.

• A line that intersects at a right angle.

• A line that connects two points on a curve.

What are alternate exterior angles?

• Angles that are on the same side of the transversal and inside the two parallel lines.

• Angles that are on opposite sides of the transversal and outside the two parallel lines.

• Angles that are on the same side of the transversal and outside the two parallel lines.

• Angles that are on opposite sides of the transversal and inside the two parallel lines.

What are corresponding angles?

• Angles that are in the same position on two parallel lines cut by a transversal.

• Angles that are equal in measure regardless of their position.

• Angles that are supplementary to each other when a transversal crosses two lines.

• Angles that are adjacent to each other on the same line.