Geometry Unit 1: Angle and Segment Addtion

Front

What is the definition of complementary angles?

Back

Two angles whose measures add up to 90 degrees.

Front

What is the definition of supplementary angles?

Back

Two angles whose measures add up to 180 degrees.

Front

What is the Angle Addition Postulate?

Back

If point B is in the interior of angle AOC, then m∠AOB + m∠BOC = m∠AOC.

Front

What is an angle bisector?

Back

A ray that divides an angle into two equal parts.

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal in measure.

Front

If angle 1 is 135 degrees, what is angle 3?

Back

135 degrees.

Front

If m∠1 + m∠2 = 90°, what can we conclude?

Back

m∠1 and m∠2 are complementary angles.

Front

What is the definition of alternate interior angles?

Back

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

Front

What is the definition of corresponding angles?

Back

Angles that are in the same position on two parallel lines in relation to a transversal.

Front

What is the definition of alternate exterior angles?

Back

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