Answer:
![\boxed {\boxed {\sf 14 \ feet}}](https://img.qammunity.org/2021/formulas/mathematics/high-school/w3j2auxezpjpk878fdzmvax4jfbwqcguex.png)
Explanation:
To find the perimeter, you must first find the side length.
We are given the area. The formula for the area of a square is:
![a=s^2](https://img.qammunity.org/2021/formulas/mathematics/middle-school/hmef8f01tlf4bkzsubuevq5c06ffof4j1q.png)
We know the room's area is 196 square feet.
![a=196 \ ft^2](https://img.qammunity.org/2021/formulas/mathematics/high-school/71isdg1fojr10vflk7hrui9d1hax7swel1.png)
Substitute the area in.
![196 \ ft^2=s^2](https://img.qammunity.org/2021/formulas/mathematics/high-school/mvgqmwts04xqx7lnd5ysu0dymc9a6fa2rz.png)
We want to find the side length, so we must isolate s on one side of the equation.
- s is being squared.
- The inverse of a square is the square root.
- Take the square root of both sides of the equation.
![√(196 \ ft^2) =√(s^2)](https://img.qammunity.org/2021/formulas/mathematics/high-school/lg03r2f3zbzefhffp640d81y4kq4l3xpf8.png)
![√(196 ft^2)=s](https://img.qammunity.org/2021/formulas/mathematics/high-school/lvt4956xx7p5weeia9c0hvz1c2wl7cfp4o.png)
![14 \ ft=s](https://img.qammunity.org/2021/formulas/mathematics/high-school/sn3qjhai5h1i8vhm71ceflt2qddzwrse9c.png)
Now, find the perimeter. This can be found using:
![p=4s](https://img.qammunity.org/2021/formulas/mathematics/college/yiirz6ofp6zkvzxx41wmpwi93i76opexrm.png)
We know the side length is 14 feet.
![p=4 (14 \ ft)](https://img.qammunity.org/2021/formulas/mathematics/high-school/6bcrhotopf0rxq7woeu3ay0fjpuuzwt90o.png)
Multiply.
![p=56 \ ft](https://img.qammunity.org/2021/formulas/mathematics/high-school/3o08ohtdexkx8w7t8nccl9gzxy3f3sa4c6.png)
The perimeter of the room is 14 feet.