Parallel Lines Cut by a Transversal

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.

How do you find the value of x in angle relationships?

• Set up an equation based on the angle relationships and solve for x.

• Estimate the angles and choose the closest value for x.

• Use a protractor to measure the angles and find x.

• Add the angles together and divide by two to find x.

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

• They are equal.

• They are supplementary.

• They are complementary.

• They are unequal.

What is the relationship between alternate exterior angles when two lines are parallel?

• They are equal.

• They are supplementary.

• They are complementary.

• They are unequal.

What is a transversal?

• A line that intersects two or more lines at different points.

• A line that runs parallel to another line.

• A line that is perpendicular to a given line.

• A line that connects two points on a curve.

If angle 4 is 110 degrees, what is the measure of angle 5 if lines are parallel?

• 70 degrees

• 80 degrees

• 90 degrees

• 100 degrees

What is the relationship between vertical angles?

• Vertical angles are always equal.

• Vertical angles are complementary.

• Vertical angles are supplementary.

• Vertical angles are never equal.

If angle 2 is 70 degrees, what is the measure of angle 7 if lines are parallel?

• 50 degrees

• 70 degrees

• 90 degrees

• 110 degrees

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

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

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

• They are equal (each angle is the same).

• They are not related.

What are vertical angles?

• Angles that are adjacent to each other when two lines intersect.

• Angles that are opposite each other when two lines intersect.

• Angles that are supplementary to each other when two lines intersect.

• Angles that are complementary to each other when two lines intersect.