Parallel Lines Cut by a Transversal

Front

What are Vertical Angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

What are Alternate Interior Angles?

Back

Alternate interior angles are pairs of angles that lie between two lines and on opposite sides of a transversal. They are equal when the lines are parallel.

Front

What are Corresponding Angles?

Back

Corresponding angles are pairs of angles that are in the same position on two different lines cut by a transversal. They are equal when the lines are parallel.

Front

What are Same Side Interior Angles?

Back

Same side interior angles are pairs of angles that lie between two lines and on the same side of a transversal. They are supplementary when the lines are parallel.

Front

What are Alternate Exterior Angles?

Back

Alternate exterior angles are pairs of angles that lie outside two lines and on opposite sides of a transversal. They are equal when the lines are parallel.

Front

If m∠8 = 48° and ∠2 is an alternate interior angle, what is m∠2?

Back

m∠2 = 48°.

Front

If m∠VUX = 156°, what is m∠SUT if they are corresponding angles?

Back

m∠SUT = 156°.

Front

What is the relationship between Same Side Interior Angles when the lines are parallel?

Back

Same Side Interior Angles are supplementary, meaning their measures add up to 180°.

Front

If two lines are cut by a transversal and m∠SUV = 70°, what is m∠XUT?

Back

m∠XUT = 70° (Vertical Angles are equal).

Front

What is the sum of the measures of angles formed by a transversal cutting two parallel lines?

Back

The sum of the measures of the angles formed is 360°.