Angle Pairs with Transversals

Front

What are Alternate Interior Angles?

Back

Angles that are equal when a transversal crosses two parallel lines.

Front

What are Supplementary Angles?

Back

Angles that add up to 180°.

Front

What are Vertical Angles?

Back

Angles that are equal and opposite each other when two lines intersect.

Front

What are Consecutive Interior Angles?

Back

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

Front

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

Back

They are equal.

Front

If ∠1 and ∠2 are corresponding angles, what can be concluded if the lines are parallel?

Back

∠1 = ∠2.

Front

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

Back

They are supplementary (add up to 180°).

Front

If two angles are vertical angles, what is their relationship?

Back

They are equal.

Front

What is the sum of the measures of Supplementary Angles?

Back

180°.