Adjacent, Supplementary, Complementary Angles, Vertical Angles

Which angles are vertical angles?

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

What is the value of "x"?

• 20

• 30

• 25

• 15

• 2x-6=7x+4
• 2x-6+7x+4=90
• 2x-6+7x+4=180
• 2x-6+7x+4=360

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 3)

• Adjacent Angles

• Linear Pair

• Complementary Angles

• Supplementary Angles

• Vertical Angles

Which angle is a vertical angle to with \angle7 ?

Vertical angles are always

• acute

• total 180 degrees

• congruent (equal measures)

• adjacent angles