Let width=x cm
so, Length=2x cm
Perimeter of rectangle=2(length+width)
54=2(x+2x)
54=6x
x=9 cm
Length of rectangle=2*9=18 cm
Solution -
Let width of the rectangle =x cm
so, Length of the rectangle
=2x cm
Perimeter of rectangle=2(length+width)
54=2(x+2x)
54=6x
x=9 cm
Length of rectangle=2*9=18 cm
Let width be w cm. So, length of rectangle = 2w cm.
Perimeter = w+w+2w+2w = 6w
6w = 54
w = 54/6 = 9 cm length = 2w = 18 cm
Let width be x cm. So, length of rectangle will become 2x cm.
Now, perimeter of rectangle = 2(length + width) = 2(x + 2x) = 6x cm
So, Perimeter = 6x = 54cm => x = 9cm.
Hence, length = 2x = 18 cm