Parallel Lines Transversal

Front

What are parallel lines?

Back

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

Front

What is a transversal?

Back

A line that crosses two or more other lines in the same plane.

Front

What are alternate interior angles?

Back

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

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

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

Back

They are equal.

Front

If angle 1 is 135°, what is the measure of angle 2 if they are supplementary?

Back

Angle 2 is 45°.

Front

What is the sum of the interior angles of a triangle?

Back

180°.

Front

If two angles are complementary, what is the sum of their measures?

Back

90°.

Front

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

Back

They are equal.

Front

If m∠x = 104°, what is m∠y if ∠x and ∠y are vertical angles?

Back

m∠y = 104°.