A trapezoid
a trapizoid
A trapezoid.
A trapezoid has exactly one pair of parallel lines
trapezoid
It is a trapezoid that has one pair of opposite parallel sides of different lengths.
a trapizoid
A trapezoid.
A trapezoid has exactly one pair of parallel lines
trapezoid
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.
That's a trapezoid (or 'trapezium').
It is a trapezoid that has one pair of opposite parallel sides of different lengths.
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.
It is a trapezoid which has 1 pair of opposite parallel sides of different lengths
A rectangle is a parallelogram, with the opposite sides parallel. However, a rectangle MUST have four (90 degree) right angles.
If it doesn't have parallel sides, it's just classified as a quadrilateral.
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.