Angle Relationships

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 are corresponding angles?

Back

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

Front

What are alternate interior angles?

Back

Alternate interior angles are the pairs of angles on opposite sides of the transversal but inside the two parallel lines. They are equal in measure.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are the pairs of angles on opposite sides of the transversal but outside the two parallel lines. They are equal in measure.

Front

If two angles are vertical angles, what can we say about their measures?

Back

Vertical angles are always equal in measure.

Front

If Angle 1 and Angle 2 are corresponding angles, what can we conclude about their measures?

Back

If Angle 1 and Angle 2 are corresponding angles, they are equal in measure.

Front

What is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

Back

Alternate interior angles are equal when two parallel lines are cut by a transversal.

Front

If Angle 2 is 45 degrees, what is the measure of its corresponding angle?

Back

The measure of the corresponding angle is also 45 degrees.

Front

What is the sum of the measures of two vertical angles?

Back

The sum of the measures of two vertical angles is always 180 degrees.

Front

If two angles are supplementary, what is the relationship between their measures?

Back

Supplementary angles add up to 180 degrees.