Determine whether the angles are adjacent angles, a linear pair, or vertical angles.
Some pairs of angles may have more than one relationship.
Angle
Adjacent angles
Vertical angles
Neither
∠
5
a
n
d
∠
6
∠5 and ∠6
∠
5
a
n
d
∠
9
∠5 and ∠9
∠
5
a
n
d
∠
8
∠5 and ∠8
<
7
�
�
�
<
9
<7 and <9
∠5 and ∠6: Neither
∠5 and ∠9: Neither
∠5 and ∠8: Adjacent angles
<7 and <9: Vertical angles