Angle Relationships with Parallel Lines and a Transversal

Front

What are Same-Side Interior Angles?

Back

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

Front

What are Vertical Angles?

Back

Angles that are opposite each other when two lines intersect; they are always congruent.

Front

Which angles are congruent to ∠6?

Back

∠2, ∠7, and ∠3 are congruent to ∠6.

Front

What are Linear Pair Angles?

Back

A pair of adjacent angles that are formed when two lines intersect; they are supplementary.

Front

What are Alternate Exterior Angles?

Back

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

Front

What are Corresponding Angles?

Back

Angles that are in the same position on two parallel lines in relation to the transversal; they are congruent.

Front

If ∠1 and ∠4 are Vertical Angles, what can be said about their measures?

Back

They are equal in measure.

Front

What is the relationship between Same-Side Interior Angles?

Back

They are supplementary, meaning their measures add up to 180 degrees.

Front

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

Back

They are congruent.

Front

What is the sum of the measures of a Linear Pair?

Back

The sum is 180 degrees.