solve for x using the properties of a parallelogram

Question

given properties : 9x-11 , 3x+7

Answer 1

9x-11 > 0 so x> 11/9 = 1 2/9

IF the parallelogram is a square, then 9x-11=3x+7

6x = 18

x=3

the sides of the square are each = 16

If the parallelogram is not a square, but the sides are all equal, then x still = 3 and each side = 16

If it's a square,the area = 16^2 = 256. IF it's not a square, then 0<area<256