In the adjoining figure, name the angles indicated $\angle 1$.

In the adjoining figure, name the angles indicated $\angle 11$.

In the adjoining figure, name the angles indicated $\angle 3$.

In the adjoining figure, name the angles indicated $\angle 15$.

In the adjoining figure, name the angles indicated $\angle 7$.

In the adjoining figure, name the angles indicated $\angle 2$.

Name the following angles in three different ways.

Name the following angles in three different ways.

Name the following angles in three different ways.