Question

In fig if l∥m ,∠1=2x+y ,∠2=x+2y ,∠3=3y+20 ,find ∠4 and ∠5

Answer 1

Answer:

Given:l∥m

sum of the interior angles on the same side of transversal is 180

∘

b+52

∘

=180

∘

⇒b=180

∘

−52

∘

=128

∘

And a=52

∘

∴a=52

∘

,b=128

∘