An isosceles trapezium
A trapezium.
No. The congruent sides need not be parallel.
square
parallelogram
Then, the opposite sides are congruent.
The Opposite Sides Parallel and Congruent Theorem states that if a quadrilateral has a pair of opposite sides that are parallel and congruent, then the quadrilateral is a parallelogram.
I would be seriously concerned if a quadrilateral had more than two pairs of opposite sides parallel! A quadrilateral with two pairs of opposite sides parallel is a parallelogram.
Parallel
An isosceles trapezium
A trapezium.
the answer is a trapezium.
A kite
rectangle
rhombus
No. The congruent sides need not be parallel.
This quadrilateral is a trapezoid. In a trapezoid, one pair of opposite sides is parallel, and one pair of opposite sides is congruent. The other two sides are not parallel or congruent.