To find the perimeter of a square, you can use the formula:
\[ \text{Perimeter} = 4 \times \text{side length} \]
In this case, the side length is \( \sqrt{212} \). Therefore, the perimeter \( P \) can be calculated as:
\[ P = 4 \times \sqrt{212} \]
Now, let's simplify \( \sqrt{212} \):
\[ \sqrt{212} = \sqrt{4 \times 53} = \sqrt{4} \times \sqrt{53} = 2\sqrt{53} \]
Now substitute this back into the perimeter formula:
\[ P = 4 \times 2\sqrt{53} = 8\sqrt{53} \]
Thus, the perimeter of the square is \( 8\sqrt{53} \).
Since the question requests the answer in simplest radical form, the final answer is:
\[ \boxed{8\sqrt{53}} \]