equations, inequalities, and angles

Which angles are vertical angles?

• $\angle8\ \ and\ \angle7$

• $\angle8\ and\ \angle6$

• $\angle8\ and\ \angle5$

Pick the correct inequality.

• A
• B
• C
• D

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

•  $\angle1$  

•  $\angle5$  

•  $\angle3$  

•  $\angle6$  

•  $\angle9$  

If the measure of ∠2 is 83°, what is the measure of ∠3?

• 7°
• 17°
• 83°
• 97°

What type of angles are these?

• Adjacent Angles

• Linear Pair

• Complementary Angles

• Supplementary Angles

• Vertical Angles

Find the missing angle.  Find x.

• 20^o
• 70^o
• 160^o
• 180^o

Which angle is a linear pair with $\angle1$  ?

•  $\angle2$  

•  $\angle3$  

•  $\angle4$  

•  $\angle5$  

•  $\angle6$  

This is what kind of angle?

• obtuse
• right
• straight
• acute

What is the value of "a"?

• 45
• 55
• 35
• 65

Vertical angles are always

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