Basic Angle Definition

This is what kind of angle?

• obtuse

• right

• straight

• acute

Vertical angles are always

• acute

• total 180 degrees

• congruent (equal measures)

• adjacent angles

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 names a pair of adjacent angles?

• ∠CXD and ∠FXE

• ∠CXF and ∠DXE

• ∠CXD and ∠DXE

Which angles are vertical angles?

• x = 118

• x = 108

• x = 28

• x = 58

• x = 62

Which are pairs of adjacent angles?

• ∠COB and ∠DOA

• ∠AOD and ∠AOC

• ∠COB and ∠AOD

• ∠BOD and ∠AOC

What type of angles are these? (select 2)

• Adjacent Angles

• Linear Pair

• Complementary Angles

• Supplementary Angles

• Vertical Angles