This figure has two parallel sides.
It also has 2 pairs of adjacent angles which are supplementary.
It is a trapezoid.
This figure has two parallel sides.
It also has 2 pairs of adjacent angles which are supplementary.
It is a trapezoid.
However, its legs are equal, so it is an isosceles trapezoid.
Opposite angles of this quadrilateral are equal.
Adjacent angles are supplementary.
It has 2 pairs of parallel sides.
Parallel sides are equal.
Therefore it is a parallelogram.
This quadrilateral has 2 pairs of parallel sides.
Its angles are equal to 90.
Therefore it is a rectangle.
This quadrilateral has 2 pairs of parallel sides.
Its angles are equal to 90.
All sides are equal.
Therefore it is a square.
This quadrilateral has two pairs of equal sides.
Those sides are adjacent.
It also has a pair of equal angles, positioned between the non-equal sides.
It is a kite.
This quadrilateral has all sides equal.
Therefore it is a rhombus.