Question

what is m∠wxz? m∠wxz = ?

Explanation:

Step1: Recall angle - addition property

The measure of an angle formed by two non - collinear rays with a common endpoint is the sum of the measures of the non - overlapping angles with the same vertex. Here, $\angle WXZ$ is composed of two non - overlapping angles.

Step2: Add the given angle measures

We know that the two angles that make up $\angle WXZ$ have measures $40^{\circ}$ and $115^{\circ}$. So, $m\angle WXZ=40^{\circ}+ 115^{\circ}$.
$m\angle WXZ = 155^{\circ}$

Answer:

$155$