Angles Review

Basic Angles

Geometry: Basic Angle Relationships

7th Grade Angles

• Complementary

• Supplementary

• Vertical

• Adjacent

• Triangle Angles (next presentation)

Like complementary angles, two angles do not have to be connected to be considered supplementary.

Complementary Vs Supplementary

• C is before S

• 90 is before 180

• So, C goes with 90 & S goes with 180

Vertical angles are on opposite sides of the vertex 
from each other and do not share any sides.

Multiple Choice

Name the Angle Relationship.

• Vertical

• Adjacent

• Complementary

• Supplementary

Multiple Choice

Name the Angle Relationship.

• Vertical

• Adjacent

• Complementary

• Supplementary

Multiple Choice

Name the Angle Relationship.

• Vertical

• Adjacent

• Complementary

• Supplementary

Multiple Choice

Name the Angle Relationship.

• Vertical

• Adjacent

• Complementary

• Supplementary

Finding a Missing Angle

Use the knowledge of angle relationships to set up an equation.

Fill in the Blank

What is the value of the missing angle?

Fill in the Blank

What is the value of the missing angle?

Fill in the Blank

What is the value of the missing angle?

Fill in the Blank

What is the value of the missing angle?

Finding a Variable

Sometimes we need to find a value within an angle and not the full angle measurement. We would still set up an equation to do this.

Multiple Choice

Find the value of x.

• 18

• 29

• 32

• 23

Fill in the Blank

Find the value of x.

Multiple Choice

Find the value of x.

• 65

• 67

• 64

• 59

Fill in the Blank

Find the value of x.

Great Job!

Make sure you have copied down the problems you missed so we can go over them in class.