Question

#4 find the missing angle. 162° x

Explanation:

Step1: Identify supplementary angle pair

The 162° angle and the adjacent small angle form a straight line (180°).
$\text{Small adjacent angle} = 180^\circ - 162^\circ = 18^\circ$

Step2: Use vertical angles property

Angle $x$ is vertical to the small adjacent angle, so they are equal.
$x = 18^\circ$

Answer:

$18^\circ$