Answer:
Explanation:
Two sides of the rectangle differ by 3.5 cm means that one side is 3.5 cm more than the other side.
If width = x cm, then length = x + 3.5
Perimeter = 67 m
2*(length +width) = 67
2*(x + 3.5 + x) = 67
2*(2x + 3.5) = 67
2*2x + 2*3.5 = 67
4x + 7 = 67
4x = 67 - 7
4x = 60
x = 60/4
x = 15 cm
Width = 15 cm
Length = 15 + 3.5
= 18.5 cm