The side of a square is 40 cm and the breadth of a rectangle is 20 cm. If their areas are equal then find the perimeter of the rectangle.

Dear student,

Perimeter of square =40 cm
Let the side be x
A.T.Q,

Perimeter of a square = 4 × sides
40 cm = 4x
4x = 40 cm
X = 40 / 4
X = 10 cm

So, area of the square,
Side × side m square = 10 × 10 cm
= 100 cm square
Area of square = Area of rectangle
100 cm square = 100 cm square

In the rectangle,
Length = 20 cm
Breadth = x
Area = 100 cm square

A. T. Q,
Length × breadth = Area
20 × X = 100
20 x = 100
X = 100 / 20
X = 5 cm

Tanmayee
regards