Angle Relationships with Transversals

Front

What are Alternate Interior Angles?

Back

Angles that lie between two parallel lines and on opposite sides of a transversal.

Front

What are Alternate Exterior Angles?

Back

Angles that lie outside two parallel lines and on opposite sides of a transversal.

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 Same-Side Interior Angles?

Back

Angles that lie between two parallel lines and on the same side of a transversal.

Front

What are Vertical Angles?

Back

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

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

Back

They are equal.

Front

If two parallel lines are cut by a transversal, what can be said about the Same-Side Interior Angles?

Back

They are supplementary (add up to 180 degrees).

Front

What is the relationship between Vertical Angles?

Back

Vertical angles are always equal.

Front

What is a Linear Pair of Angles?

Back

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