Since the garden is circular, you will have to find the area of a circle. The formula is:
![\pi * r^(2)](https://img.qammunity.org/2019/formulas/mathematics/high-school/ctyh8prbc46p7l3ei3my12wohi06gy3m3l.png)
The diameter is 16 feet. Radius is ½ of the diameter. To find the radius, divide the diameter by 2.
![d = 16 \\ 16 / 2 = 8 \\ \\ r = 8](https://img.qammunity.org/2019/formulas/mathematics/high-school/a54th82r81fmpufgmz5xr9iwe3yku5acno.png)
Square the radius
![r = 8 \\ 8^(2) = 8 * 8 = 64](https://img.qammunity.org/2019/formulas/mathematics/high-school/e70ihdt1mn807uv47asuzym49u4jrlzp9b.png)
Multiply by π(3.14)
![64 * 3.14 = 200.96](https://img.qammunity.org/2019/formulas/mathematics/high-school/9uy5c3bkjbfhz27qoks0nkhl2slszkxj4b.png)
The area of the garden is 200.96 feet