square and rectangal
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.
a trapezoid!
A parallelogram has two pairs of congruent sides.
A parallelogram is a quadrilateral with two pairsof parallel sides.
A non-regular quadrilateral can have either zero, one, or two pairs of parallel sides. If it has no parallel sides, it is called a trapezoid; if it has one pair of parallel sides, it is still considered a trapezoid; and if it has two pairs of parallel sides, it is classified as a parallelogram. Thus, the maximum number of parallel sides a non-regular quadrilateral can have is two.
The quadrilateral with two pairs of parallel sides
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.
rectangle
A quadrangle (or quadrilateral) that has two pairs of parallel sides is called a parallelogram.
rhombus
a trapezoid!
a trapezoid
a parallelogram
parallelogram
An trapezium
rectangle
A parallelogram has two pairs of congruent sides.