Question

find the value of x.
x =

Explanation:

Step1: Recall triangle - exterior - angle property

The exterior angle of a triangle is equal to the sum of the two non - adjacent interior angles.

Step2: Apply the property

Here, $x$ is the exterior angle of the triangle with non - adjacent interior angles $50^{\circ}$ and $70^{\circ}$. So, $x=50 + 70$.

Answer:

$120$