Question

ure of ∠x? essarily drawn to scale. b 156° x° a o c

Explanation:

Step1: Recall angle - addition property

The sum of $\angle AOB$ (which is $x^{\circ}$) and the adjacent angle $\angle BOC$ (which is $156^{\circ}$) is $180^{\circ}$ since they form a linear - pair of angles. So, we have the equation $x + 156=180$.

Step2: Solve for $x$

Subtract 156 from both sides of the equation: $x=180 - 156$.
$x = 24$

Answer:

$24$