Exploring Angles with Parallel Lines and Transversals

What is the defining characteristic of parallel lines?

• They intersect at a 90-degree angle.

• They have the same distance between them at all points.

• They form a triangle.

• They are always horizontal.

Which of the following is an example of perpendicular lines?

• The edges of a book

• Train tracks

• The hands of a clock at 3:00

• Parallel streets

What is a transversal?

• A line that is parallel to another line

• A line that forms a 90-degree angle

• A line that is perpendicular to another line

• A line that intersects two or more lines

When a transversal cuts two parallel lines, how many angles are formed at each intersection?

• Two

• Four

• Six

• Eight

Which angles are congruent when a transversal intersects parallel lines?

• Supplementary angles

• Adjacent angles

• None of the above

• Corresponding angles

What are vertical angles?

• Angles that are supplementary

• Angles that are on the same side of the transversal

• Angles that are adjacent to each other

• Angles that are opposite each other at an intersection

Which of the following pairs are alternate interior angles?

• Angles 2 and 7

• Angles 1 and 5

• Angles 4 and 8

• Angles 3 and 6

What is the sum of supplementary angles?

• 90 degrees

• 45 degrees

• 180 degrees

• 360 degrees

If angle 1 is 124 degrees, what is the measure of angle 4?

• 90 degrees

• 124 degrees

• 180 degrees

• 56 degrees

If angle 1 is 50 degrees, what is the measure of angle x if it is supplementary to angle 1?

• 180 degrees

• 50 degrees

• 130 degrees

• 90 degrees