Question

Two angles forming a linear pair are
Adjacent angles and supplementary angles
(ii) Complementary angles
(ii) Adjacent and Complementary angles
(iv) None of these​

Answer 1

Answer:

For two straight intersecting lines sum of adjacent angles is 180

∘

and vertically opposite angles are equal.

In the attached figure

∠1+∠2=∠2+∠3=∠3+∠4=∠4+∠1=180

∘

(Adjacent angles on straight lines)

∠1=∠3 and ∠2=∠4 (Opposite angles)

So option B is correct.