Question

plz solve this quickly its urgent​

Answer 1

As given in the figure,

AB║CD║EF

So,

n is the formation of the two angles of the transversal.

Hence,

If we break the both angles of n it becomes ∠n1 and ∠n2.

So, ∠n1 + 30° = 180° [∵Co-interior angles]

=> ∠n1 = 180°-30°

= 150°

Then, ∠n2 + 43°= 180°

=> ∠n2 = 180° - 43°

= 137°

∴ The value of n is = ∠n1 + ∠n2

= 150° + 137° = 287°(Ans)