The length of a rectangle is twice its width, the perimeter of it is 36cm. what is the are of it

Answer: 72 cm²

Step-by-step explanation: lets take the width as x and length as 2x as length is twice the width = perimeter of rectangle is 2 * (l+b) = 36cm

So, 2 * (2x+x) = 36cm

2*3x=36cm

6x=36cm

X=36/6:6cm (width, since width was taken as x)

Length = 2x: 2*6=12cm

So area of the rectangle is (l*b):

12*6 = 72cm²