Question 759570
A square with an area of 49 ins^2
 has a perimeter of 28 ins.
Area of square = length^2
Length^2 = 49
Therefore length = square root of 49
          length = 7 ins
Perimeter = 2*length + 2* width
(With a square, length = width)
           = 2*7 + 2*7
           = 28 ins.
I think you are confusing the second power.
The second power is associated with inches
i.e. 49 ins^2 was the area.
Hope this helps,.
:-)