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Vertical angles ...

• add up to 180

• add up to 90

• are congruent (have the same measurement)

Complementary angles...

• add up to 180

• add up to 90

• are congruent (have the same measurement)

Supplementary angles...

• add up to 180

• add up to 90

• are congruent (have the same measurement)

Practice 1b: Name a pair of vertical angles

Angles 1 and 3 are what angle pair?

• Complementary
• Supplementary
• Vertical

If m∠1 = 30°, then m∠3 = 

• 30°
• 60°
• 150°
• undetermined

What are complementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other

What are supplementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect

Choose the angle that is supplementary to a 22 $\degree$  angle. 

•  $22\degree$  

•  $44\degree$  

•  $68\degree$  

•  $90\degree$  

•  $158\degree$  

Choose the angle that is complementary to a 22 $\degree$  angle. 

•  $22\degree$  

•  $44\degree$  

•  $68\degree$  

•  $90\degree$  

•  $158\degree$