Definition, Properties, Perimeter Area, of Rectangle

 Rectangle

Definition of Rectangle or What is rectangle?

1 )  A quadrilateral in which opposite sides are equal and each angle is 90 (for class 4th  to 8th)

                              OR

2) Rectangle is a parallelogram in which diagonals are equal.

                                       OR

3) Rectangle is a parallelogram in which each angle is 90.

In this figure  AB=DC and AD= BC  (opposite sides are equal)

AC= BD (diagonals are equal) 

<A=<B=<C=<D=90   (each angle is 90)

Area and perimeter of rectangle

Area of rectangle = length x breadth ( L x B)

perimeter of rectangle = 2(length + breadth) = 2(L+B)

 Relation among length, breadth and diagonal