A semicircle is half a full circle
The area of a circle is given by
[tex]A=piXr^2[/tex]
The area of a semicircle will be given by
[tex]A_{semicircle\text{ }}=\frac{\pi r^2}{2}[/tex]
pi = 3.142, r =3
[tex]A\text{ =}\frac{3.14\text{ x 3 x3}}{2}[/tex]
A = 14.13 square ft
A = 14.1 square feet (To the nearest tenth)
