7 Lesson 20: Identifying and Solving Angle Relationships

Front

The blue and yellow angles are _________ angles.

Back

adjacent

Front

<1 and <3 are called ________ angles.

Back

vertical

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

Solve for x: If angle A + angle B = 90° and angle A = 70°, what is angle B?

Back

20°

Front

What type of angles are shown?

Back

Supplementary

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

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

Back

They are equal.

Front

What is the relationship between adjacent angles?

Back

They share a common side and vertex.

Front

If angle C = 30°, what is the measure of its complementary angle?

Back

60°

Front

If angle D = 150°, what is the measure of its supplementary angle?

Back

30°