Question

please solve the questions no a

Answer 1

angle a = 48 degrree since AB||CD.alternate interior angles are equal

Answer 2

in triangle EFG angel E + angel F +angel G =180 (a.s.t.p) so angel E=42 so angel AEF+angel FEG + GEH (linear pair) so we get angle geh =48 =angel EGF where they both are alternate interior angle so AB PARELLEL TO CD