.Parallegram

A quadrilateral whose opposite sides are parallel is called a Parallegram.
Properties of a parallelogram
*Opposite sides of the parallelogram are equal.
*Opposite angle of the parallelogram are equal.
*The diagonals of the parallelogram bisect each other
(I) Rectangle:
Rectangle is a types of parallelogram but parallelogram is not rectangle because all angle of rectangle equal each other or all angle of rectangle equal to 90 degree. The diagonals of rectangle are equal.
(II) Square:
Square also a types of parallelogram but parallelogram and rectangle are not square because all side and angles of square are equal to each other. The diagonals of square are equal.

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