Question

the area of a rectangle is 1800cm square it's length is 2times it's breadth find its perimeter​

Answer 1

Step-by-step explanation:

area of rectangle = 1800 sq cm

let breadth of rectangle = x

length = 2x

area of rectangle = l x b

1800 = 2x X x

$2 {x}^{2} = 1800 \\ {x}^{2} = 1800 \div 2 \\ {x}^{2} = 900 \\ x = \sqrt{900} \\ x = 30$

breadth = x = 30 cm

length = 2x = 2 X 30 = 60 cm

perimeter of rectangle = 2(l+b)

= 2( 60 + 30)

= 2 x 90

= 180 cm