Answer:
14.13 ft²
Step-by-step explanation:
The area of a semicircle is
[tex] = \frac{\pi \: {r}^{2} }{2} [/tex]
We were given the radius of the semicircle to be: r=3 feet.
We were also asked to use π as 3.14.
We substitute into the formula to get:
[tex]= \frac{3.14 \times {3}^{2} }{2} [/tex]
This is the same as:
[tex]= \frac{3.14 \times 9}{2} [/tex]
Or
[tex]= 3.14 \times 4.5[/tex]
[tex] = 14 .13 {ft}^{2} [/tex]
The area of the semicircle is 14.13 ft²
