Angle Relationships with Parallel Lines and a Transversal

Front

What are Alternate Exterior Angles?

Back

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

Front

What are Corresponding Angles?

Back

Angles that are in the same position on two parallel lines in relation to a transversal.

Front

What are Alternate Interior Angles?

Back

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

Front

What are Same-Side Interior Angles?

Back

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

Front

What are Vertical Angles?

Back

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

Front

What is a Linear Pair?

Back

A pair of adjacent angles that are supplementary, meaning they add up to 180 degrees.

Front

If ∠1 and ∠8 are Alternate Exterior Angles, what can be said about their measures?

Back

They are congruent.

Front

If ∠1 and ∠5 are Corresponding Angles, what can be said about their measures?

Back

They are congruent.

Front

Which angles are NOT congruent to ∠6 if ∠1 is one of them?

Back

∠1 is NOT congruent to ∠6.

Front

If ∠3 and ∠5 are Same-Side Interior Angles, what can be said about their measures?

Back

They are supplementary, meaning they add up to 180 degrees.