We know that the area of a square is given by the following formula:
[tex]A=s^2[/tex]
Using the known value we can find s (the side of the square):
[tex]\begin{gathered} 16=s^2 \\ s=\sqrt[]{16} \\ s=4 \end{gathered}[/tex]
The perimeter of a square is:
[tex]P=4s[/tex]
Use the value of s to find the perimeter:
[tex]P=4\cdot4=16[/tex]
The perimeter is also 16. The correct choice is D.
