In both the figures, AB || CD
Fig(ii) shows a Parallelogram with two adjacent sides equal and one angle 90∘.
Identify the two figures.
Fig(i) is a trapezium and fig(ii) is a square
In fig(i), one pair of opposite sides are unequal and parallel. Therefore, it is a trapezium.
In fig(ii), one angle is 90∘ and adjacent sides are equal. Therefore, it is a square.