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

Define Alternate Interior Angles.

Back

Alternate interior angles are pairs of angles that lie on opposite sides of the transversal and inside the two lines. They are equal when the lines are parallel.

Front

What are Alternate Exterior Angles?

Back

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

Front

What are Corresponding Angles?

Back

Corresponding angles are pairs of angles that are in the same position on two different lines cut by a transversal. They are equal when the lines are parallel.

Front

What is the sum of supplementary angles?

Back

The sum of supplementary angles is 180 degrees.

Front

What is the measure of complementary angles?

Back

The sum of complementary angles is 90 degrees.

Front

If Angle 1 is 70°, what is the measure of its supplementary angle?

Back

The supplementary angle is 110° (180° - 70°).

Front

If Angle 2 is 30°, what is the measure of its complementary angle?

Back

The complementary angle is 60° (90° - 30°).

Front

Identify the angle pair: Angle 3 and Angle 6 are examples of which type of angle pair?

Back

Alternate interior angles.

Front

Given two parallel lines cut by a transversal, if Angle 4 is 50°, what is the measure of Angle 5?

Back

Angle 5 is 130° (180° - 50°).