Question

The area of the house is 2400 sq cm . The length is twice the breath . What is the perimeter of the house

Answer 1

Answer:120√3 cm

Step-by-step explanation:

let breadth be x

then length should be 2x (according to the question )

and area = l * b

2400 = 2x * x

=> 2400 = 2x²

=> 1200 = x²

=> x = √1200

=> x = 20√3

so 2x = 40√3

perimeter = 20√3 + 20√3 + 40√3 + 40√3 = 120√3 cm

Answer 2

Answer:

120√3 cm

Step-by-step explanation:

Define x:

Let the breadth be x

The length = 2x

Solve x:

x(2x) = 2400

2x² = 2400

x² = 1200

x = √1200

x = 20√3

Find the dimension:

Breadth = x = 20√3 cm

Length = 2x = 2(20√3) = 40√3 cm

Find the perimeter:

Perimeter = 2( Length + Breadth)

Perimeter = 2(20√3 + 40√3) = 120√3

Answer: The perimeter is 120√3 cm