Question

1. line de is parallel to line bc. match the correct angle measure to the appropriate angle.

Explanation:

Step1: Recall parallel - line angle rules

When $DE\parallel BC$, we use the properties of alternate - interior angles and corresponding angles.

Step2: Analyze angle relationships

$\angle EAC$ and $\angle ACB$ are alternate - interior angles. Since $DE\parallel BC$, $\angle EAC$ and $\angle ACB$ are equal. So $\angle EAC = c^{\circ}$.

Answer:

$\angle EAC=c^{\circ}$