For this case we have that the area of the figure is given by the area of the side square
minus the area of the small rectangle.
By definition, the area of a square is given by:
![A = l ^ 2](https://img.qammunity.org/2020/formulas/mathematics/middle-school/wwa1vdcatq4jkw1yvv6xt32rhh4hlk5stj.png)
Where:
l: It's the side of the square
In this case,
![l = 8 \ in](https://img.qammunity.org/2020/formulas/mathematics/college/b5r720a2dh6p9az0jnij9wd1cep3jlp07h.png)
The area of a rectangle is given by:
![A = a * b](https://img.qammunity.org/2020/formulas/mathematics/middle-school/lfj0rf4lqrmbefz7bql5hx494noppx0un9.png)
Where:
a and b are the sides of the rectangle
In this case,
and
![b = 3 \ in](https://img.qammunity.org/2020/formulas/mathematics/college/un15cl51id88q3t0x3dta8ed76zv1cn6zn.png)
So:
![A_ {t} = 8 ^ 2-4 * 3\\A_ {t} = 64-12\\A_ {t} = 52](https://img.qammunity.org/2020/formulas/mathematics/college/a8x124lhw5ytsxtrygcxcklf0b2u33mn79.png)
Thus, the area of the figure is
![52 \ in ^ 2](https://img.qammunity.org/2020/formulas/mathematics/college/wddpjgd2n0zy7g85jbnpfeag7c7c16czs7.png)
Answer:
![52 \ in ^ 2](https://img.qammunity.org/2020/formulas/mathematics/college/wddpjgd2n0zy7g85jbnpfeag7c7c16czs7.png)