Alternate interior angles a pair of angles in which one arm of each of the angle is on opposite sides of the transversal and whose other arms include segment PQ as shown in Fig. 15.15 is called a pair of alternate interior angles.

ALTERNATE INTERIOR ANGLES A pair of angles in which one arm of each of the angles is on opposite sides of the transversal and whole other arm include segment PQ as shown in Fig.44 is called a pair of alternate interior 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.

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.

Corresponding angles a pair of angles in which one arm of both the angles is on the same side of the transversal and their other arms are directed in the same sense is called a pair of corresponding angles.

CORRESPONDING ANGLES A pair of angles in which one arm of both the angles is no the same sides of the transversal and their other arms are directed in the same sense is called a pair of corresponding angles.

If two lines are intersected by a transversal, then the number of pairs of interior angles on the same side of the transversal is

An exterior angle of a triangle is 110^(@) and one of the interior opposite is 30^(@) find the other two angles of the triangle.

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

If a transversal intersects two parallel lines, then alternate interior angles are on the _______ side of the transversal.