Ex.5.1 Q10 Lines and Angles - NCERT Maths Class 7
Indicate which pairs of angles are:
(i) Vertically opposite angles?
(ii) Linear pairs?
(i) \(\angle 1\) and \(\angle 4, \angle 5\) and ( \(\angle 2+\angle 3\)) are vertically opposite angles as they formed due to intersection of two straight lines.
(ii) \(\angle 1\) and\( \angle 5 , \angle 5\) and \(\angle 4\) forms linear pair.