Parallelograms (if the equal sides are opposite one another) or kites (if they are adjacent).
All quadrilaterals have two [pairs] of opposite sides and in most cases they are not equal.
Quadrilaterals are called parallelograms ONLY if both pairs of opposite sides are equal and parallel to each other.
Every quadrilateral has four sides and they are opposite each other. So, ALL quadrilaterals have both pairs of opposite sides.
A rhomboid and oblong
Parallelograms (if the equal sides are opposite one another) or kites (if they are adjacent).
All quadrilaterals have two [pairs] of opposite sides and in most cases they are not equal.
Quadrilaterals are called parallelograms ONLY if both pairs of opposite sides are equal and parallel to each other.
Depending on your definition of "opposite", a square, rectangle, or regular parallelogram have opposite sides and opposite angles of equal measure.
Both are quadrilaterals. A rectangle has 4 right angles, a rhombus has 2 pairs of equal angles (at opposite corners) A rhombus has 4 equal sides, a rectangle has 2 pairs of equal sides. The opposite sides in both shapes are parallel to each other.
Every quadrilateral has four sides and they are opposite each other. So, ALL quadrilaterals have both pairs of opposite sides.
A rhomboid and oblong
Kites or arrowheads.
Yes, but there must be two pairs of opposite sides that are equal.Yes, but there must be two pairs of opposite sides that are equal.Yes, but there must be two pairs of opposite sides that are equal.Yes, but there must be two pairs of opposite sides that are equal.
a Kite, a rectangle and a parallelogram (all have 2 pairs of equal sides), and an isosceles trapezium. Irregular quadrilaterals can have only 2 sides equal but are not one of the named quadrilaterals above.
any quadrilaterals
A parallelogram (and all its special cases) has two pairs of opposite sides that are congruent. An isosceles trapezium has one pair of congruent opposite sides. Selected irregular quadrilaterals can have a pair.