Angle Vocabulary

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always congruent.

Front

What are exterior angles?

Back

Exterior angles are the angles formed outside a pair of intersecting lines.

Front

What are interior angles?

Back

Interior angles are the angles formed inside a pair of intersecting lines.

Front

What are corresponding angles?

Back

Corresponding angles are angles that are in the same position on two parallel lines cut by a transversal. They are congruent.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles on opposite sides of the transversal but inside the two lines. They are congruent.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of angles on opposite sides of the transversal but outside the two lines. They are congruent.

Front

Are corresponding angles congruent?

Back

Yes, corresponding angles are congruent when two parallel lines are cut by a transversal.

Front

Are alternate interior angles congruent?

Back

Yes, alternate interior angles are congruent when two parallel lines are cut by a transversal.

Front

Are alternate exterior angles congruent?

Back

Yes, alternate exterior angles are congruent when two parallel lines are cut by a transversal.

Front

What is the relationship between vertical angles?

Back

Vertical angles are always congruent.