A transversal meets lines and at points and respectively

MATHEMATICS · Subjective · CBSE · Mathematics · Lines and Angles · Lines and Angles

Problem

A transversal meets lines

a

and

b

at points

M

and

N

respectively. At

M

, the interior angle to the left of the transversal is

110^\circ

. At

N

, the interior angle on the same side of the transversal is

70^\circ

. Show that lines

a

and

b

are parallel.