Question

refer to the figure. find m∠deb.

Explanation:

Step1: Identify vertical - angles

Vertical angles are equal. $\angle DEB$ and the $104^{\circ}$ angle are vertical angles.

Step2: Determine the measure of $\angle DEB$

Since vertical angles are congruent, $m\angle DEB = 104^{\circ}$.

Answer:

$104^{\circ}$