Answer:
The perimeter of the fencing is 44 feet (Option D)
Explanation:
Area and Perimeter
A square shape of side length (a) has an area given by:
![A = a^2](https://img.qammunity.org/2021/formulas/mathematics/high-school/wlgj3ad4z7be8q0s6ca4k35nq1em5np9vo.png)
And its perimeter is calculated as:
P = 4a
The area of Katrina's square garden is given as A=121 square feet. We need to calculate the side length by solving for a:
![a=√(121)](https://img.qammunity.org/2021/formulas/mathematics/high-school/cehtneixv8e4okm3jw05f44g5ze6fxfus8.png)
a = 11 feet
Once we know the value of a, then we calculate the perimeter:
P = 4*11 = 44
The perimeter of the fencing is 44 feet (Option D)