Question

3.Which one of the following is not true
L2+L5=180
L1+L5=180
L2+L3=180​

Answer 1

Explanation:

ANSWER

l

1

∣∣l

3

and l

4

is transversal line.

∴∠1=40

∘

(Corresponding angles)

Now ∠x+∠1=180

∘

(Angles made on the same line )

⇒∠x+40

∘

=180

∘

⇒∠x=180

∘

−40

∘

⇒∠x=140

∘