Answer: The correct option is A) s = square root of A
Explanation-
Since we have given that
[tex]A=s^2[/tex]
And we have to rearrange the formula to solve for s :
Taking square root on both the sides, we get
[tex]\sqrt{A}=\sqrt{s^2}\\\\\sqrt{A}=s^{\frac{1}{2}\times 2}\\\\\sqrt{A}=s[/tex]
Hence, the correct answer is option A).