Question

13. Area of a square is 5/2of the area of rectangle.
Difference between the area of square and
rectangle is 162 square cm. If length of the
rectangle is 3 cm more than the breath of the
rectangle. Then find the perimeter of rectangle?​

Answer 1

Step-by-step explanation:

area of square = 5x

area of rectangular= 2x

different of area = 5x - 2x=162

3x= 162

x= 54

area of rectangular= 2x= 54*2= 108

x*(x+3)=108

x^2 +3x = 108

x(x+3) =108

x= 9

lenth =9+3=12

breadth= 9

perimeter= (12+9)*2=21*2 =42