Question

name the marked angle in 2 different ways.

Explanation:

Step1: Use vertex - based naming

We can name the angle using the vertex. When the vertex is the only angle at a point, we can simply use the vertex letter. So one way is $\angle A$.

Step2: Use three - point naming

We can also name the angle using three points. The vertex must be the middle point. So another way is $\angle BAD$ (assuming the angle is formed by rays $\overrightarrow{AB}$ and $\overrightarrow{AD}$).

Answer:

$\angle A$, $\angle BAD$