Interior angles the angles whose arms include line segment PQ are called interior angles.

exterior angles the angles whose arms do not include the line segment PQ are called exterior angles.

EXTERIOR ANGLES The angles whose arms do not include the line segment PQ are called exterior angles.

Interior opposite angles

Interior adjacent angles

Interior of an angle

ALTERNATE EXTERIOR ANGLES A pair of angles in which one arm of each of the angles is on opposite sides of the transversal and whose other arms are directed in opposite direction and do not include segment PQ is called a pair of alternate exterior angles.

Alternate exterior angles a pair of angles in which one arm of each of the angles is on opposite side of the transversal and whose other arms are directed in opposite direction and do not include segment PQ is called a alternate exterior angles.

The sum of co interior angles is

In the figure question identify the pair of angles as corresponding angles, alternate interior angles, ecterior alternate angles, adjacent angles, vertically opposite angles co-interior angles and linear pairs. angle3 and angle6

In the figure question identify the pair of angles as corresponding angles, alternate interior angles, ecterior alternate angles, adjacent angles, vertically opposite angles co-interior angles and linear pairs. angle3 and angle7