Question

find the measure of the exterior angle, x. x = ?°

Explanation:

Step1: Use the exterior angle theorem

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

Step2: Calculate the value of \(x\)

We have two non - adjacent interior angles \(52^{\circ}\) and \(78^{\circ}\). So \(x = 52+78\).

$$x=130$$

Answer:

\(130\)