1.5: Angle Relations

Vertical angles are always

• acute
• total 180 degrees
• congruent (equal measures)
• adjacent angles

Supplementary angles always add up to

Which angle is a vertical angle to with $\angle7$  ?

•  $\angle1$  

•  $\angle5$  

•  $\angle3$  

•  $\angle6$  

•  $\angle9$  

1) Given the two parallel lines cut by a transversal.

What is the vertical angle to angle 4?

• Angle 2

• Angle 6

• Angle 8

• Angle 7

What kind of angles are these? (Choose all that apply)

• complementary

• supplementary

• right

• linear pair

If m∠1 = 30°, then m∠3 = 

• 30°
• 60°
• 150°
• undetermined

Two angles added together to produce 90 degrees

• Supplementary
• Complementary
• Right
• Vertical

These angles are...

• Complementary
• Supplementary
• Neither

What is an example of a pair of complementary angles?

• 13° and 45°
• 10° and 170°
• 81° and 9°
• 90° and 3°

What kind of angles are shown?

• complementary

• supplementary

• corresponding