<PRE><B>Question 324864</B>
let width be x
length of rectangle = 2x

,,
Perimeter of rectangle = 2L+2W
2x+4x=120
6x=120
x=20 feet which is the width
..
length = 2x = 2*20 =40 feet

..
let second side be x
first side will be 2x
Third side = x+30
Perimeter = 110
..
Perimeter = aum of all sides

x+2x+x+30= 110
4x+30 =110
4x=80
x=20 cm - second side
first side = 2x = 40cm
third side = x+30 = 20+30=50 cm</PRE>