Angle Pairs

Angle Pairs

This quizizz will help you navigate relationships between pairs of angles.

Adjacent angles

Two angles are adjacent if they lie in the same plane, have a common vertex and a common side, but no common interior points.

Multiple Choice

Why do you think

 $\angle ABC$  and  $\angle ABD$ are not adjacent angles? 

• They do not have a common vertex

• They do not have a common side

• They have common interior points

• All of these

Multiple Choice

Why do you think

 $\angle DOC$  and  $\angle BOA$ are not adjacent angles? 

• They do not have a common vertex

• They do not have a common side

• They have common interior points

• All of these

Linear Pair

Two angles form a linear pair if they are adjacent and their non-common sides are opposite rays.

∠1 and ∠2;  ∠3 and ∠4;     and   ∠5 and ∠6 are all examples of linear pairs

Multiple Choice

Why are ∠AOC and ∠BOD not a linear pair?

• They do not contain opposite rays.

• They are not adjacent.

• They are not angles.

• They are congruent

Vertical Angles

Two non-adjacent angles formed by intersecting lines.
∠ACB and ∠ECD are vertical angles
so are ∠BCE and ∠DCA

Multiple Choice

What angle is vertical to ∠AFB?

• ∠CFD

• ∠BFC

• ∠GFA

• ∠EFD

Multiple Choice

What angle is vertical to ∠GFE?

• ∠CFD

• ∠BFC

• ∠GFA

• ∠EFD

Multiple Choice

What angle is vertical to ∠AFC?

• ∠EFD

• ∠BFA

• ∠GFE

• ∠GFD

Help with Vertical Angles

Watch the video for an easy way to correctly identify vertical angles. Either link shoud work.

https://bit.ly/3hmi43c

https://youtu.be/6dOfVISOzlI

Complementary and Supplementary Angles

Complementary angles are 2 angles whose measures have a sum of 90 degrees  ex: ∠BXC & ∠CXD
Supplementary angles are 2 angles whose measures have a sum of 180 degrees ex: ∠AXB & ∠BXD

Multiple Choice

True or False: Supplementary angles must form a linear pair.

• True

• False

Supplementary Angles

Notice the angles with the p and the q, they are supplementary, but not adjacent.

Multiple Choice

What is the measure of ∠EFH? (be careful not x)

• m∠EFH =34

• m∠EFH =96

• m∠EFH =84

• m∠EFH =22

Multiple Choice

What is the m∠ABC ?

• m∠ABC = 36

• m∠ABC = 27

• m∠ABC = 9

• m∠ABC = 18