Identify the given pairs of angles as corresponding angles, interior alternate angles, exterior alternate angles, adjacent angles, vertically opposite angles or allied angles:

$\angle 4$ and $\angle 6$

Identify the given pairs of angles as corresponding angles, interior alternate angles, exterior alternate angles, adjacent angles, vertically opposite angles or allied angles:

$\angle 6$ and $\angle 7$

Identify the given pairs of angles as corresponding angles, interior alternate angles, exterior alternate angles, adjacent angles, vertically opposite angles or allied angles:

$\angle 2$ and $\angle 13$

In the following figures, the arrows indicate parallel lines. State which angles are equal. Give reasons.

In the following figures, the arrows indicate parallel lines. State which angles are equal. Give reasons.

In the given figure, find the measure of the unknown angles:

Identify whether the pair of the dotted line segment, in the given figure are parallel. Give reason:

Identify whether the pair of the dotted line segment, in the given figure are parallel. Give reason.

Identify whether the pair of the dotted line segment, in the given figure are parallel. Give reason: