parallelograms and squares.
Quadrilaterals that have parallel opposite sides (assuming that each side is parallel to its opposite): A parallelogram A rectangle A square (really a rectangle with all sides equal in length)
opposite sides are parallel opposite sides congruent opposite angles are equal opposite lines parallel 1 pair opp. lines parallel and congruent
Any regular polygons with an even number of sides can have opposite sides equal and parallel.For quadrilaterals, if any two sides are equal and parallel, the other two sides must also be equal and parallel, and it is a parallelogram (square or rhombus). If the equal sides are not parallel, the figure is a trapezoid (UK trapezium).
Rhombus is a quadrilateral whose all sides are equal and its opposite sides are parallel to each other but their anger are not equal to 90°.
Quadrilaterals are called parallelograms ONLY if both pairs of opposite sides are equal and parallel to each other.
All quadrilaterals apart from rectangles. Even parallelograms have adjacent angles that are not equal.
Because they both have opposite equal parallel sides and they are both 4 sided quadrilaterals
Quadrilaterals with two pairs of opposite sides equal are classified as parallelograms. This category includes rectangles, rhombuses, and squares, as all these shapes possess the property of having opposite sides that are both equal and parallel. Additionally, the characteristics of these shapes can vary; for instance, rectangles have right angles, while rhombuses have equal-length sides.
The most common quadrilaterals are squares, rectangles, parallelograms, rhombuses, and trapezoids. A square has four equal sides and right angles, while a rectangle has opposite sides equal and right angles. Parallelograms have opposite sides that are equal and parallel, rhombuses have all sides equal but angles can vary, and trapezoids have at least one pair of parallel sides. Each type has unique properties that distinguish them from one another.
quadrilaterals with two pairs of parallel sides
A parallelogram.
They are quadrilaterals; opposite sides are parallel.