A quadrilateral is a polygon with four sides. A parallelogram is a quadrilateral in which the opposite sides are parallel.
The opposite sides of a parallelogram are parallel lines and a parallelogram is a 4 sided quadrilateral
A parallelogram. Opposite sides are parallel and congruent.parallelogram is a quadrilateral with two sets of parallel sides. The opposite sides of a parallelogram are of equal length, and the opposite angles of a parallelogram are congruent. The three-dimensional counterpart of a parallelogram is a parallelepiped.Parallelogram - A quadrilateral whose opposite sides are parallel
Then, the opposite sides are congruent.
A quadrilateral is a parallelogram if it has two pairs of (opposite) sides that are parallel.
A parallelogram is a quadrilateral with opposite sides that are parallel.
They are equal and parallel.
Equal and parallel