CLASS-6
PERIMETER OF RECTANGLE

PERIMETER OF RECTANGLE -

The perimeter of a rectangle is the sum of the lengths of all its sides. A rectangle has two pairs of equal-length sides: two of them are the length (L) and the other two are the width (W). To calculate the perimeter (P) of a rectangle, you can use the formula:

Perimeter (P) of a rectangle = 2L + 2W

Here, L represents the length of the rectangle, and W represents the width of the rectangle.

For example, if you have a rectangle with a length of 8 cm and a width of 5 cm:

Perimeter (P) of the rectangle = 2L + 2W

perimeter

In  the adjoining figure, ABCD is a rectangle.

As the lengths of the opposite sides of a rectangle are equal.

Perimeter of the rectangle = AB + BC + DC + AD

                             =  AB + BC + AB + BC (AB = DC & BC = AD)

                             =  2 AB + 2 BC

                             =  2L + 2W   (AB = DC = L & BC = AD = W)

                             = 2 (L + W) = 2 (Length + Width)

From the given condition, AB = DC = L = 8 cm

                     and,  BC = AD = W = 5 cm

So, perimeter of the said rectangle ABCD is = 2 (L + W)

                                                 = 2(8 + 5) cm

                                                 = (2 X 13) cm

                                                 = 26 cm

So, perimeter of the said rectangle is 26 cm.   (Ans.)