Answer:
5 yd
Explanation:
A square is a quadrilateral with 4 sides of equal length.
The area of a square is found by squaring one side length:
![A=s^2 \quad \textsf{(where $s$ is the side length)}](https://img.qammunity.org/2023/formulas/mathematics/college/xcdoylpsx5cmtw95rr043pn4kdy05wduk1.png)
Therefore, to find the side length of a square, simply square root its area:
![\implies A=s^2](https://img.qammunity.org/2023/formulas/mathematics/college/vv5fg58pb5bktd5ixcaeuj0xbecqzpwuo3.png)
![\implies √(A)=√(s^2)](https://img.qammunity.org/2023/formulas/mathematics/college/ybch5c04caedveh3swuqcc99js7nh30ydb.png)
![\implies √(A)=s](https://img.qammunity.org/2023/formulas/mathematics/college/xrc9k4b0cnozv7hyi6hu0c1pdjq3l7v9zi.png)
![\implies s=√(A)](https://img.qammunity.org/2023/formulas/mathematics/college/z7g9zzkubujk75xyw8tsedke863bvuc1uh.png)
Therefore, if the area of a square is 25 yd²:
![\implies s=√(25)](https://img.qammunity.org/2023/formulas/mathematics/college/11bbotjp01bp010t93k3gffvdyin3734df.png)
![\implies s=5\; \sf yd](https://img.qammunity.org/2023/formulas/mathematics/college/mfxo5b8c7xwvspq6ndb4vqnknz0qdicxet.png)