Flashcard Parallel Lines Cut by Transversals

Front

What are alternate exterior angles?

Back

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

Front

What are alternate interior angles?

Back

Angles that are on opposite sides 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 the transversal.

Front

What are vertical angles?

Back

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

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 is a transversal?

Back

A line that intersects two or more lines at different points.

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.