Question

The length of a rectangle is 25cm and is breadth is 15cm. If the perimeter of a square is same as the perimeter of this rectangle,then find the area of the square

Answer 1

Given, Length(l) = 25cm
Breadth(b) = 15cm

Perimeter=2(l+b)
=2(25+15)
=2×40
=80cm
Therefore, perimeter of rectangle is 80cm.

Now, it is stated that the perimeter of rectangle is same of the square.

Side of square = 80 ÷ 4
Side = 20 cm

Area of square = side × side
Area = 20× 20
Area of square = 400 cm square.

Hope it helps!

Answer 2

this will help

$perimeter of rectngle =$

2(l+b)

$2(25 + 15) \\ 2(40) \\ 80 \: cm \\ perimeter \: of \: squre =$

4*a

$\\ 80 = 4 \times a \\ 80 \div 4 \\ 20cm \\ area \: of \: squre \: =$