Angle Pair Relationships

Front

Vertical angles are ______.

Back

always congruent

Front

Name the angle pair: Angles that share a common vertex and a common side but do not overlap.

Back

Adjacent

Front

An angle is 77º. What is the measure of its supplement?

Back

103º

Front

Find x if the angles are complementary: x + 75º = 90º.

Back

15

Front

Angles which add up to 180° are called _____

Back

Supplementary Angles

Front

What are complementary angles?

Back

Two angles that add up to 90°.

Front

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

Back

180°

Front

If two angles are vertical, what can be said about their measures?

Back

They are equal.

Front

What is the measure of the complement of a 45° angle?

Back

45°

Front

If angle A is 30° and angle B is its supplement, what is the measure of angle B?

Back

150°