Incorrect. Find the area of the rectangle and the area of the semicircle separately. The formula for the area of a rectangle is $\displaystyle{A}={l}\cdot{w}\usepackage{cmbright}\Huge\$ . The formula for the area of a semicircle is: $\displaystyle{A}=\frac{{\pi{{r}}^{{2}}}}{{2}}\usepackage{cmbright}\Huge\$

The diameter of the semicircle is $\displaystyle{d}={8}-{3}-{3}={2}\usepackage{cmbright}\Huge\$ feet. The radius is: $\displaystyle{r}=\frac{{2}}{{2}}={1}\usepackage{cmbright}\Huge\$

Add the areas of the shapes to find the entire area of the composite figure.