Of al the ||gms of given sides: the ||gm which is rectangle has the greatest area

Of al the |gms of given sides: the |gm which is rectangle has the greatest area

Prove that, of all the parallelograms of given sides, the parallelogram, which is recatangle has the greatest area.

Prove that of all parallelograms of which the sides are given, the parallelogram which is rectangle has the greatest area.

Prove that of all parallelograms of which the sides are given,the parallelogram which is rectangle has the greatest area.

Show that , of all rectangles of given permeter , the square has the greatest area.

In the given figure, a ||gm ABCD and a rectangle ABEF are of equal area. Then,

In the figure, find the area of ||gm.

The side of a square is 6cm. A rectangle has the same perimeter as that of the square. Which has the greater area: the square or the rectangle?

The area of a square is 900cm^(2) . The length of a rectangle is equal to the side of the given square and breadth of the rectangle is equal to half the length of the rectangle. The area of rectangle is

The greatest side of the rectangle of the greatest area that can be inscribed in the ellipse x^(2)+2y^(2)=8 ,is