Answer:

The value of exterior angle (x°) is 50°

Step-by-step explanation:

In this problem, we're not going to direct solve for the x. As we can see to the given figure, there's an interior angle which that has also missing value.

Let's say that interior angle is y.

We all know that the figure sums up to 360. Therefore,

Now, we know the value of y or the interior angle. We are going to solve for now the exterior angle which is the x.

Since, the x and y are supplementary the sum will be 180°. Therefore,

The value of exterior angle (x°) is 50°