Given:
Area of the square = 625 sq. ft
Required: Side length of the square
Explanation:
Let a be the side length of the square. Then the area of the square is
[tex]A=a^2[/tex]
Equate it with 625.
[tex]\begin{gathered} a^2=625 \\ a=\sqrt{625} \\ =25\text{ ft} \end{gathered}[/tex]
The third option is correct.
Final Answer: The side length of the square is 25 feet.
