Question

Question 3 (iii)
Can a quadrilateral ABCD be a parallelogram, if:
(iii) $\angle A={70}^{\circ }and\angle C={65}^{\circ }$

Answer 1

(iii) No. $\angle A\ne \angle C$.
Since opposite angles are equal in parallelogram and here opposite angles are not equal in quadrilateral ABCD. Therefore it is not a parallelogram.