This diagram shows a SQUARE picture frame which measures 14 cm by 14 cm. The smaller square represents the area where the picture (which is `x` by `x`) will fit.

Figure is not drawn to scale
Mariana wants to cover the white area, the mat, in fabric.
Write an expression that represents the area of fabric that Mariana will need.
    Area of fabric =  
If `x = 11` cm, how much fabric will Mariana need?
    Mariana will need `\text{cm}^2` of fabric.