Question

question. solve for m∠cde.

Explanation:

Step1: Identify angle - addition principle

The measure of ∠CDE is the sum of the two non - overlapping angles within it.

Step2: Add the given angle measures

We know that ∠CDE=30° + 53°.
$m\angle CDE=30^{\circ}+53^{\circ}=83^{\circ}$

Answer:

$83^{\circ}$