Angle Relationships Flashcard

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal in measure.

Front

What is the relationship between corresponding angles?

Back

Corresponding angles are angles that are in the same position on two parallel lines in relation to a transversal. They are equal in measure.

Front

Define alternate interior angles.

Back

Alternate interior angles are pairs of angles that lie between two parallel lines and on opposite sides of a transversal. They are equal in measure.

Front

What are same side interior angles?

Back

Same side interior angles are pairs of angles that lie between two parallel lines and on the same side of a transversal. They are supplementary, meaning they add up to 180 degrees.

Front

What is the relationship between vertical angles?

Back

Vertical angles are always equal to each other when two lines intersect.

Front

Identify the angle relationship: ∠1 and ∠2 are on opposite sides of the transversal and inside the parallel lines.

Back

These are alternate interior angles.

Front

Identify the angle relationship: ∠3 and ∠4 are on the same side of the transversal and outside the parallel lines.

Back

These are same side exterior angles.

Front

What is the sum of same side interior angles?

Back

The sum of same side interior angles is 180 degrees.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of angles that lie outside two parallel lines and on opposite sides of a transversal. They are equal in measure.

Front

What is the relationship between angle 8 and angle 6 if they are opposite each other when two lines intersect?

Back

Angle 8 and angle 6 are vertical angles.