Angles and Missing Angles

Find the missing angle.  Find x.

• 20^o

• 70^o

• 160^o

• 180^o

Which angles are vertical angles?

Which angle is a vertical angle to with \angle7 ?

• x = 118

• x = 108

• x = 28

• x = 58

• x = 62

Find the missing angle.

• 43

• 47

• 57

• 67

If two angles in a triangle measure 50 degrees and 60 degrees, what is the measure of the third angle?

• 70 degrees

• 60 degrees

• 50 degrees

• 80 degrees

Find the missing angle.

• 16

• 17

• 27

• 37

This is what kind of angle?

• obtuse

• right

• straight

• acute

What angle is vertical to angle 2?

• ∠4

• ∠1

• ∠2

• ∠5

Which are pairs of vertical angles?

• ∠COB and ∠COA

• ∠AOD and ∠AOC

• ∠COB and ∠AOD

• ∠BOD and ∠AOD